687363972 has 48 divisors (see below), whose sum is σ = 1616412672. Its totient is φ = 227335840.

The previous prime is 687363967. The next prime is 687363979. The reversal of 687363972 is 279363786.

It is not an unprimeable number, because it can be changed into a prime (687363979) 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, 1594597 + ... + 1595027.

It is an arithmetic number, because the mean of its divisors is an integer number (33675264).

Almost surely, 2^687363972 is an apocalyptic number.

It is an amenable number.

687363972 is an abundant number, since it is smaller than the sum of its proper divisors (929048700).

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

687363972 is a wasteful number, since it uses less digits than its factorization.

687363972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168 (or 1166 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 51.

The square root of 687363972 is about 26217.6271237502. The cubic root of 687363972 is about 882.5288707528.

The spelling of 687363972 in words is "six hundred eighty-seven million, three hundred sixty-three thousand, nine hundred seventy-two".