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472897 = 3712781
BaseRepresentation
bin1110011011101000001
3220000200201
41303131001
5110113042
614045201
74006465
oct1633501
9800621
10472897
112a3327
121a9801
13137329
14c44a5
15951b7
hex73741

472897 has 4 divisors (see below), whose sum is σ = 485716. Its totient is φ = 460080.

The previous prime is 472883. The next prime is 472907. The reversal of 472897 is 798274.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 798274 = 2399137.

It can be written as a sum of positive squares in 2 ways, for example, as 389376 + 83521 = 624^2 + 289^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-472897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 12781 = 472897 / (4 + 7 + 2 + 8 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6354 + ... + 6427.

It is an arithmetic number, because the mean of its divisors is an integer number (121429).

2472897 is an apocalyptic number.

It is an amenable number.

472897 is a deficient number, since it is larger than the sum of its proper divisors (12819).

472897 is a wasteful number, since it uses less digits than its factorization.

472897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12818.

The product of its digits is 28224, while the sum is 37.

The square root of 472897 is about 687.6750686189. The cubic root of 472897 is about 77.9092193911.

It can be divided in two parts, 472 and 897, that added together give a square (1369 = 372).

The spelling of 472897 in words is "four hundred seventy-two thousand, eight hundred ninety-seven".

Divisors: 1 37 12781 472897