68358431 has 2 divisors, whose sum is σ = 68358432. Its totient is φ = 68358430.

The previous prime is 68358421. The next prime is 68358449. The reversal of 68358431 is 13485386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68358431 - 2¹⁴ = 68342047 is a prime.

It is a super-2 number, since 2×68358431² = 9345750177563522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68358421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34179215 + 34179216.

It is an arithmetic number, because the mean of its divisors is an integer number (34179216).

Almost surely, 2^68358431 is an apocalyptic number.

68358431 is a deficient number, since it is larger than the sum of its proper divisors (1).

68358431 is an equidigital number, since it uses as much as digits as its factorization.

68358431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 38.

The square root of 68358431 is about 8267.9157591258. The cubic root of 68358431 is about 408.8814066245.

The spelling of 68358431 in words is "sixty-eight million, three hundred fifty-eight thousand, four hundred thirty-one".