497257623 has 10 divisors (see below), whose sum is σ = 742817064. Its totient is φ = 331505028.

The previous prime is 497257619. The next prime is 497257637. The reversal of 497257623 is 326752794.

497257623 is a `hidden beast` number, since 4 + 9 + 72 + 576 + 2 + 3 = 666.

It is not a de Polignac number, because 497257623 - 2² = 497257619 is a prime.

It is a super-2 number, since 2×497257623² = 494530287263220258, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (497250623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3069411 + ... + 3069572.

Almost surely, 2^497257623 is an apocalyptic number.

497257623 is a deficient number, since it is larger than the sum of its proper divisors (245559441).

497257623 is an equidigital number, since it uses as much as digits as its factorization.

497257623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6138995 (or 6138986 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 497257623 is about 22299.2740464796. The cubic root of 497257623 is about 792.2467808794.

The spelling of 497257623 in words is "four hundred ninety-seven million, two hundred fifty-seven thousand, six hundred twenty-three".