26401679 has 2 divisors, whose sum is σ = 26401680. Its totient is φ = 26401678.

The previous prime is 26401673. The next prime is 26401709. The reversal of 26401679 is 97610462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26401679 - 2⁸ = 26401423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26401673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13200839 + 13200840.

It is an arithmetic number, because the mean of its divisors is an integer number (13200840).

Almost surely, 2^26401679 is an apocalyptic number.

26401679 is a deficient number, since it is larger than the sum of its proper divisors (1).

26401679 is an equidigital number, since it uses as much as digits as its factorization.

26401679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 26401679 is about 5138.2564163342. The cubic root of 26401679 is about 297.7674228421.

The spelling of 26401679 in words is "twenty-six million, four hundred one thousand, six hundred seventy-nine".