259792891 has 2 divisors, whose sum is σ = 259792892. Its totient is φ = 259792890.

The previous prime is 259792867. The next prime is 259792919. The reversal of 259792891 is 198297952.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-259792891 is a prime.

It is not a weakly prime, because it can be changed into another prime (259792801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129896445 + 129896446.

It is an arithmetic number, because the mean of its divisors is an integer number (129896446).

Almost surely, 2^259792891 is an apocalyptic number.

259792891 is a deficient number, since it is larger than the sum of its proper divisors (1).

259792891 is an equidigital number, since it uses as much as digits as its factorization.

259792891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 52.

The square root of 259792891 is about 16118.0920396925. The cubic root of 259792891 is about 638.0809138311.

The spelling of 259792891 in words is "two hundred fifty-nine million, seven hundred ninety-two thousand, eight hundred ninety-one".