68023831 has 2 divisors, whose sum is σ = 68023832. Its totient is φ = 68023830.

The previous prime is 68023799. The next prime is 68023841. The reversal of 68023831 is 13832086.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68023831 - 2⁵ = 68023799 is a prime.

It is a super-2 number, since 2×68023831² = 9254483167833122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68023793 and 68023802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68023841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34011915 + 34011916.

It is an arithmetic number, because the mean of its divisors is an integer number (34011916).

Almost surely, 2^68023831 is an apocalyptic number.

68023831 is a deficient number, since it is larger than the sum of its proper divisors (1).

68023831 is an equidigital number, since it uses as much as digits as its factorization.

68023831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 68023831 is about 8247.6560912783. The cubic root of 68023831 is about 408.2131859574.

The spelling of 68023831 in words is "sixty-eight million, twenty-three thousand, eight hundred thirty-one".