26956859 has 2 divisors, whose sum is σ = 26956860. Its totient is φ = 26956858.

The previous prime is 26956843. The next prime is 26956871. The reversal of 26956859 is 95865962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26956859 - 2⁴ = 26956843 is a prime.

It is a super-3 number, since 3×26956859³ (a number of 23 digits) contains 333 as substring.

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 (26956819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13478429 + 13478430.

It is an arithmetic number, because the mean of its divisors is an integer number (13478430).

Almost surely, 2^26956859 is an apocalyptic number.

26956859 is a deficient number, since it is larger than the sum of its proper divisors (1).

26956859 is an equidigital number, since it uses as much as digits as its factorization.

26956859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1166400, while the sum is 50.

The square root of 26956859 is about 5191.9995184900. Note that the first 3 decimals coincide. The cubic root of 26956859 is about 299.8401333425.

The spelling of 26956859 in words is "twenty-six million, nine hundred fifty-six thousand, eight hundred fifty-nine".