68075931 has 48 divisors (see below), whose sum is σ = 115899392. Its totient is φ = 34784640.

The previous prime is 68075873. The next prime is 68075947. The reversal of 68075931 is 13957086.

It is not a de Polignac number, because 68075931 - 2⁹ = 68075419 is a prime.

It is a super-2 number, since 2×68075931² = 9268664763033522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68075931.

It is not an unprimeable number, because it can be changed into a prime (68075951) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 185310 + ... + 185676.

Almost surely, 2^68075931 is an apocalyptic number.

68075931 is a deficient number, since it is larger than the sum of its proper divisors (47823461).

68075931 is a wasteful number, since it uses less digits than its factorization.

68075931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 68075931 is about 8250.8139598466. The cubic root of 68075931 is about 408.3173772839.

It can be divided in two parts, 68075 and 931, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 68075931 in words is "sixty-eight million, seventy-five thousand, nine hundred thirty-one".