26804957 has 2 divisors, whose sum is σ = 26804958. Its totient is φ = 26804956.

The previous prime is 26804923. The next prime is 26804977. The reversal of 26804957 is 75940862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19971961 + 6832996 = 4469^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 26804957 - 2⁶ = 26804893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26804977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13402478 + 13402479.

It is an arithmetic number, because the mean of its divisors is an integer number (13402479).

Almost surely, 2^26804957 is an apocalyptic number.

It is an amenable number.

26804957 is a deficient number, since it is larger than the sum of its proper divisors (1).

26804957 is an equidigital number, since it uses as much as digits as its factorization.

26804957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 26804957 is about 5177.3503841251. The cubic root of 26804957 is about 299.2758720539.

The spelling of 26804957 in words is "twenty-six million, eight hundred four thousand, nine hundred fifty-seven".