687342975 has 48 divisors (see below), whose sum is σ = 1246836864. Its totient is φ = 331344000.

The previous prime is 687342959. The next prime is 687342989. The reversal of 687342975 is 579243786.

It is not a de Polignac number, because 687342975 - 2⁴ = 687342959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 147024 + ... + 151626.

It is an arithmetic number, because the mean of its divisors is an integer number (25975768).

Almost surely, 2^687342975 is an apocalyptic number.

687342975 is a deficient number, since it is larger than the sum of its proper divisors (559493889).

687342975 is a wasteful number, since it uses less digits than its factorization.

687342975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808 (or 4803 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 51.

The square root of 687342975 is about 26217.2266839954. The cubic root of 687342975 is about 882.5198844185.

The spelling of 687342975 in words is "six hundred eighty-seven million, three hundred forty-two thousand, nine hundred seventy-five".