687503564 has 12 divisors (see below), whose sum is σ = 1312506888. Its totient is φ = 312501600.

The previous prime is 687503521. The next prime is 687503587. The reversal of 687503564 is 465305786.

It is a super-2 number, since 2×687503564² = 945322301025404192, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 15625081 = 687503564 / (6 + 8 + 7 + 5 + 0 + 3 + 5 + 6 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7812497 + ... + 7812584.

It is an arithmetic number, because the mean of its divisors is an integer number (109375574).

Almost surely, 2^687503564 is an apocalyptic number.

It is an amenable number.

687503564 is a deficient number, since it is larger than the sum of its proper divisors (625003324).

687503564 is a wasteful number, since it uses less digits than its factorization.

687503564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15625096 (or 15625094 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 687503564 is about 26220.2891669791. The cubic root of 687503564 is about 882.5886089394.

The spelling of 687503564 in words is "six hundred eighty-seven million, five hundred three thousand, five hundred sixty-four".