68956031 has 2 divisors, whose sum is σ = 68956032. Its totient is φ = 68956030.

The previous prime is 68955977. The next prime is 68956037. The reversal of 68956031 is 13065986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68956031 - 2⁶ = 68955967 is a prime.

It is a super-3 number, since 3×68956031³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68956037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34478015 + 34478016.

It is an arithmetic number, because the mean of its divisors is an integer number (34478016).

Almost surely, 2^68956031 is an apocalyptic number.

68956031 is a deficient number, since it is larger than the sum of its proper divisors (1).

68956031 is an equidigital number, since it uses as much as digits as its factorization.

68956031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 68956031 is about 8303.9768183684. The cubic root of 68956031 is about 410.0694528386.

The spelling of 68956031 in words is "sixty-eight million, nine hundred fifty-six thousand, thirty-one".