687460252 has 6 divisors (see below), whose sum is σ = 1203055448. Its totient is φ = 343730124.

The previous prime is 687460219. The next prime is 687460313. The reversal of 687460252 is 252064786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85932528 + ... + 85932535.

Almost surely, 2^687460252 is an apocalyptic number.

It is an amenable number.

687460252 is a deficient number, since it is larger than the sum of its proper divisors (515595196).

687460252 is a wasteful number, since it uses less digits than its factorization.

687460252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171865067 (or 171865065 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 687460252 is about 26219.4632286780. The cubic root of 687460252 is about 882.5700744994.

The spelling of 687460252 in words is "six hundred eighty-seven million, four hundred sixty thousand, two hundred fifty-two".