68930031 has 16 divisors (see below), whose sum is σ = 93506400. Its totient is φ = 45158400.

The previous prime is 68930023. The next prime is 68930041. The reversal of 68930031 is 13003986.

It is not a de Polignac number, because 68930031 - 2³ = 68930023 is a prime.

It is a super-2 number, since 2×68930031² = 9502698347321922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68930041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97981 + ... + 98681.

It is an arithmetic number, because the mean of its divisors is an integer number (5844150).

Almost surely, 2^68930031 is an apocalyptic number.

68930031 is a deficient number, since it is larger than the sum of its proper divisors (24576369).

68930031 is a wasteful number, since it uses less digits than its factorization.

68930031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 68930031 is about 8302.4111558029. The cubic root of 68930031 is about 410.0179072091.

The spelling of 68930031 in words is "sixty-eight million, nine hundred thirty thousand, thirty-one".