685968075 has 48 divisors (see below), whose sum is σ = 1357100640. Its totient is φ = 337703040.

The previous prime is 685968067. The next prime is 685968083. The reversal of 685968075 is 570869586.

It is an interprime number because it is at equal distance from previous prime (685968067) and next prime (685968083).

It is not a de Polignac number, because 685968075 - 2³ = 685968067 is a prime.

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, 30312 + ... + 47861.

It is an arithmetic number, because the mean of its divisors is an integer number (28272930).

Almost surely, 2^685968075 is an apocalyptic number.

685968075 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

685968075 is a deficient number, since it is larger than the sum of its proper divisors (671132565).

685968075 is a wasteful number, since it uses less digits than its factorization.

685968075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78205 (or 78194 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The square root of 685968075 is about 26190.9922492448. The cubic root of 685968075 is about 881.9310534286.

The spelling of 685968075 in words is "six hundred eighty-five million, nine hundred sixty-eight thousand, seventy-five".