26864899 has 2 divisors, whose sum is σ = 26864900. Its totient is φ = 26864898.

The previous prime is 26864843. The next prime is 26864921. The reversal of 26864899 is 99846862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26864899 - 2⁷ = 26864771 is a prime.

It is not a weakly prime, because it can be changed into another prime (26864839) 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, 13432449 + 13432450.

It is an arithmetic number, because the mean of its divisors is an integer number (13432450).

Almost surely, 2^26864899 is an apocalyptic number.

26864899 is a deficient number, since it is larger than the sum of its proper divisors (1).

26864899 is an equidigital number, since it uses as much as digits as its factorization.

26864899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 26864899 is about 5183.1360198243. The cubic root of 26864899 is about 299.4987890174.

The spelling of 26864899 in words is "twenty-six million, eight hundred sixty-four thousand, eight hundred ninety-nine".