26956691 has 2 divisors, whose sum is σ = 26956692. Its totient is φ = 26956690.

The previous prime is 26956673. The next prime is 26956703. The reversal of 26956691 is 19665962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26956691 - 2⁶ = 26956627 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26956661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13478345 + 13478346.

It is an arithmetic number, because the mean of its divisors is an integer number (13478346).

Almost surely, 2^26956691 is an apocalyptic number.

26956691 is a deficient number, since it is larger than the sum of its proper divisors (1).

26956691 is an equidigital number, since it uses as much as digits as its factorization.

26956691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 44.

The square root of 26956691 is about 5191.9833397267. The cubic root of 26956691 is about 299.8395104553.

The spelling of 26956691 in words is "twenty-six million, nine hundred fifty-six thousand, six hundred ninety-one".