472491 has 12 divisors (see below), whose sum is σ = 697632. Its totient is φ = 308016.

The previous prime is 472477. The next prime is 472523. The reversal of 472491 is 194274.

472491 = 19² + 20² + ... + 112².

It is a happy number.

It is not a de Polignac number, because 472491 - 2¹⁰ = 471467 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (472411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136 + ... + 981.

It is an arithmetic number, because the mean of its divisors is an integer number (58136).

2⁴⁷²⁴⁹¹ is an apocalyptic number.

472491 is a deficient number, since it is larger than the sum of its proper divisors (225141).

472491 is a wasteful number, since it uses less digits than its factorization.

472491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170 (or 1167 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 472491 is about 687.3798076755. The cubic root of 472491 is about 77.8869170014.

The spelling of 472491 in words is "four hundred seventy-two thousand, four hundred ninety-one".