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497971 = 1926209
BaseRepresentation
bin1111001100100110011
3221022002101
41321210303
5111413341
614401231
74142545
oct1714463
9838071
10497971
11310151
12200217
13145876
14cd695
159c831
hex79933

497971 has 4 divisors (see below), whose sum is σ = 524200. Its totient is φ = 471744.

The previous prime is 497969. The next prime is 497977. The reversal of 497971 is 179794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179794 = 289897.

It is a cyclic number.

It is not a de Polignac number, because 497971 - 21 = 497969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 497971.

It is not an unprimeable number, because it can be changed into a prime (497977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13086 + ... + 13123.

It is an arithmetic number, because the mean of its divisors is an integer number (131050).

2497971 is an apocalyptic number.

497971 is a deficient number, since it is larger than the sum of its proper divisors (26229).

497971 is a wasteful number, since it uses less digits than its factorization.

497971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26228.

The product of its digits is 15876, while the sum is 37.

The square root of 497971 is about 705.6706030437. The cubic root of 497971 is about 79.2625458217.

It can be divided in two parts, 4979 and 71, that added together give a triangular number (5050 = T100).

The spelling of 497971 in words is "four hundred ninety-seven thousand, nine hundred seventy-one".

Divisors: 1 19 26209 497971