687468744 has 48 divisors (see below), whose sum is σ = 1885478400. Its totient is φ = 226253664.

The previous prime is 687468739. The next prime is 687468757. The reversal of 687468744 is 447864786.

687468744 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 2×687468744² = 945226547953875072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54744 + ... + 66119.

It is an arithmetic number, because the mean of its divisors is an integer number (39280800).

Almost surely, 2^687468744 is an apocalyptic number.

It is an amenable number.

687468744 is an abundant number, since it is smaller than the sum of its proper divisors (1198009656).

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

687468744 is a wasteful number, since it uses less digits than its factorization.

687468744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120954 (or 120947 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 54.

The square root of 687468744 is about 26219.6251689455. The cubic root of 687468744 is about 882.5737085297.

The spelling of 687468744 in words is "six hundred eighty-seven million, four hundred sixty-eight thousand, seven hundred forty-four".