687395052 has 48 divisors (see below), whose sum is σ = 1785016800. Its totient is φ = 228761280.

The previous prime is 687395041. The next prime is 687395063. The reversal of 687395052 is 250593786.

It is a happy number.

687395052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (687395041) and next prime (687395063).

It is a junction number, because it is equal to n+sod(n) for n = 687394989 and 687395007.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66574 + ... + 76202.

It is an arithmetic number, because the mean of its divisors is an integer number (37187850).

Almost surely, 2^687395052 is an apocalyptic number.

It is an amenable number.

687395052 is an abundant number, since it is smaller than the sum of its proper divisors (1097621748).

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

687395052 is a wasteful number, since it uses less digits than its factorization.

687395052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10303 (or 10295 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 687395052 is about 26218.2198480370. The cubic root of 687395052 is about 882.5421720920.

The spelling of 687395052 in words is "six hundred eighty-seven million, three hundred ninety-five thousand, fifty-two".