68204291 has 2 divisors, whose sum is σ = 68204292. Its totient is φ = 68204290.

The previous prime is 68204267. The next prime is 68204329. The reversal of 68204291 is 19240286.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68204291 - 2²⁶ = 1095427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68204251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34102145 + 34102146.

It is an arithmetic number, because the mean of its divisors is an integer number (34102146).

Almost surely, 2^68204291 is an apocalyptic number.

68204291 is a deficient number, since it is larger than the sum of its proper divisors (1).

68204291 is an equidigital number, since it uses as much as digits as its factorization.

68204291 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 32.

The square root of 68204291 is about 8258.5889230546. The cubic root of 68204291 is about 408.5738492890.

It can be divided in two parts, 6820 and 4291, that added together give a palindrome (11111).

The spelling of 68204291 in words is "sixty-eight million, two hundred four thousand, two hundred ninety-one".