623697507 has 12 divisors (see below), whose sum is σ = 904668960. Its totient is φ = 414057168.

The previous prime is 623697467. The next prime is 623697517. The reversal of 623697507 is 705796326.

It is not a de Polignac number, because 623697507 - 2¹⁰ = 623696483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (623697517) 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, 142828 + ... + 147129.

It is an arithmetic number, because the mean of its divisors is an integer number (75389080).

Almost surely, 2^623697507 is an apocalyptic number.

623697507 is a deficient number, since it is larger than the sum of its proper divisors (280971453).

623697507 is a wasteful number, since it uses less digits than its factorization.

623697507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290202 (or 290199 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The square root of 623697507 is about 24973.9365539356. The cubic root of 623697507 is about 854.3936318264.

The spelling of 623697507 in words is "six hundred twenty-three million, six hundred ninety-seven thousand, five hundred seven".