687914264 has 16 divisors (see below), whose sum is σ = 1299256200. Its totient is φ = 341445952.

The previous prime is 687914261. The next prime is 687914267. The reversal of 687914264 is 462419786.

It is an interprime number because it is at equal distance from previous prime (687914261) and next prime (687914267).

It is a super-2 number, since 2×687914264² = 946452069229323392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (687914261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312734 + ... + 314925.

Almost surely, 2^687914264 is an apocalyptic number.

It is an amenable number.

687914264 is a deficient number, since it is larger than the sum of its proper divisors (611341936).

687914264 is a wasteful number, since it uses less digits than its factorization.

687914264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627802 (or 627798 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 687914264 is about 26228.1197191106. The cubic root of 687914264 is about 882.7643205068.

The spelling of 687914264 in words is "six hundred eighty-seven million, nine hundred fourteen thousand, two hundred sixty-four".