260899831 has 2 divisors, whose sum is σ = 260899832. Its totient is φ = 260899830.

The previous prime is 260899819. The next prime is 260899861. The reversal of 260899831 is 138998062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 260899831 - 2⁷ = 260899703 is a prime.

It is a super-2 number, since 2×260899831² = 136137443631657122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260899801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130449915 + 130449916.

It is an arithmetic number, because the mean of its divisors is an integer number (130449916).

Almost surely, 2^260899831 is an apocalyptic number.

260899831 is a deficient number, since it is larger than the sum of its proper divisors (1).

260899831 is an equidigital number, since it uses as much as digits as its factorization.

260899831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 260899831 is about 16152.3939711734. The cubic root of 260899831 is about 638.9858866090.

The spelling of 260899831 in words is "two hundred sixty million, eight hundred ninety-nine thousand, eight hundred thirty-one".