26085931 has 2 divisors, whose sum is σ = 26085932. Its totient is φ = 26085930.

The previous prime is 26085929. The next prime is 26085947. The reversal of 26085931 is 13958062.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26085931 - 2¹ = 26085929 is a prime.

It is a super-2 number, since 2×26085931² = 1360951592273522, which contains 22 as substring.

Together with 26085929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26085971) 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, 13042965 + 13042966.

It is an arithmetic number, because the mean of its divisors is an integer number (13042966).

Almost surely, 2^26085931 is an apocalyptic number.

26085931 is a deficient number, since it is larger than the sum of its proper divisors (1).

26085931 is an equidigital number, since it uses as much as digits as its factorization.

26085931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 26085931 is about 5107.4387906269. The cubic root of 26085931 is about 296.5756200570.

The spelling of 26085931 in words is "twenty-six million, eighty-five thousand, nine hundred thirty-one".