26361931 has 2 divisors, whose sum is σ = 26361932. Its totient is φ = 26361930.

The previous prime is 26361919. The next prime is 26361941. The reversal of 26361931 is 13916362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26361931 - 2¹³ = 26353739 is a prime.

It is a super-2 number, since 2×26361931² = 1389902812097522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26361893 and 26361902.

It is not a weakly prime, because it can be changed into another prime (26361941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13180965 + 13180966.

It is an arithmetic number, because the mean of its divisors is an integer number (13180966).

Almost surely, 2^26361931 is an apocalyptic number.

26361931 is a deficient number, since it is larger than the sum of its proper divisors (1).

26361931 is an equidigital number, since it uses as much as digits as its factorization.

26361931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 26361931 is about 5134.3871104544. The cubic root of 26361931 is about 297.6179171476.

The spelling of 26361931 in words is "twenty-six million, three hundred sixty-one thousand, nine hundred thirty-one".