26364889 has 2 divisors, whose sum is σ = 26364890. Its totient is φ = 26364888.

The previous prime is 26364881. The next prime is 26364893. The reversal of 26364889 is 98846362.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18636489 + 7728400 = 4317^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 26364889 - 2³ = 26364881 is a prime.

It is not a weakly prime, because it can be changed into another prime (26364881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13182444 + 13182445.

It is an arithmetic number, because the mean of its divisors is an integer number (13182445).

Almost surely, 2^26364889 is an apocalyptic number.

It is an amenable number.

26364889 is a deficient number, since it is larger than the sum of its proper divisors (1).

26364889 is an equidigital number, since it uses as much as digits as its factorization.

26364889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 46.

The square root of 26364889 is about 5134.6751601245. The cubic root of 26364889 is about 297.6290483614.

The spelling of 26364889 in words is "twenty-six million, three hundred sixty-four thousand, eight hundred eighty-nine".