687125058 has 16 divisors (see below), whose sum is σ = 1375682880. Its totient is φ = 228802896.

The previous prime is 687124979. The next prime is 687125081. The reversal of 687125058 is 850521786.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53413 + ... + 65016.

It is an arithmetic number, because the mean of its divisors is an integer number (85980180).

Almost surely, 2^687125058 is an apocalyptic number.

687125058 is an abundant number, since it is smaller than the sum of its proper divisors (688557822).

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

687125058 is a wasteful number, since it uses less digits than its factorization.

687125058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119401.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 687125058 is about 26213.0703657546. The cubic root of 687125058 is about 882.4266090958.

The spelling of 687125058 in words is "six hundred eighty-seven million, one hundred twenty-five thousand, fifty-eight".