687452952 has 16 divisors (see below), whose sum is σ = 1718632440. Its totient is φ = 229150976.

The previous prime is 687452921. The next prime is 687453037. The reversal of 687452952 is 259254786.

687452952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×687452952² = 945183122427028608, which contains 22 as substring.

It is a congruent number.

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, 14321913 + ... + 14321960.

Almost surely, 2^687452952 is an apocalyptic number.

It is an amenable number.

687452952 is an abundant number, since it is smaller than the sum of its proper divisors (1031179488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

687452952 is a wasteful number, since it uses less digits than its factorization.

687452952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28643882 (or 28643878 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 48.

The square root of 687452952 is about 26219.3240187462. The cubic root of 687452952 is about 882.5669505446.

The spelling of 687452952 in words is "six hundred eighty-seven million, four hundred fifty-two thousand, nine hundred fifty-two".