472645 has 4 divisors (see below), whose sum is σ = 567180. Its totient is φ = 378112.

The previous prime is 472643. The next prime is 472669. The reversal of 472645 is 546274.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 187489 + 285156 = 433^2 + 534^2 .

It is a cyclic number.

It is not a de Polignac number, because 472645 - 2¹ = 472643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472643) 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, 47260 + ... + 47269.

It is an arithmetic number, because the mean of its divisors is an integer number (141795).

2⁴⁷²⁶⁴⁵ is an apocalyptic number.

It is an amenable number.

472645 is a deficient number, since it is larger than the sum of its proper divisors (94535).

472645 is an equidigital number, since it uses as much as digits as its factorization.

472645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94534.

The product of its digits is 6720, while the sum is 28.

The square root of 472645 is about 687.4918181331. The cubic root of 472645 is about 77.8953780319.

The spelling of 472645 in words is "four hundred seventy-two thousand, six hundred forty-five".