26900999 has 2 divisors, whose sum is σ = 26901000. Its totient is φ = 26900998.

The previous prime is 26900989. The next prime is 26901029. The reversal of 26900999 is 99900962.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26900999 - 2⁴ = 26900983 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26900989) 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, 13450499 + 13450500.

It is an arithmetic number, because the mean of its divisors is an integer number (13450500).

Almost surely, 2^26900999 is an apocalyptic number.

26900999 is a deficient number, since it is larger than the sum of its proper divisors (1).

26900999 is an equidigital number, since it uses as much as digits as its factorization.

26900999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 26900999 is about 5186.6172983940. The cubic root of 26900999 is about 299.6328805573.

The spelling of 26900999 in words is "twenty-six million, nine hundred thousand, nine hundred ninety-nine".