687252027 has 16 divisors (see below), whose sum is σ = 1142445312. Its totient is φ = 357013920.

The previous prime is 687252019. The next prime is 687252061. The reversal of 687252027 is 720252786.

It is not a de Polignac number, because 687252027 - 2³ = 687252019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (687252017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1487328 + ... + 1487789.

It is an arithmetic number, because the mean of its divisors is an integer number (71402832).

Almost surely, 2^687252027 is an apocalyptic number.

687252027 is a deficient number, since it is larger than the sum of its proper divisors (455193285).

687252027 is a wasteful number, since it uses less digits than its factorization.

687252027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975138.

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 687252027 is about 26215.4921182113. The cubic root of 687252027 is about 882.4809582144.

The spelling of 687252027 in words is "six hundred eighty-seven million, two hundred fifty-two thousand, twenty-seven".