26859971 has 2 divisors, whose sum is σ = 26859972. Its totient is φ = 26859970.

The previous prime is 26859967. The next prime is 26859991. The reversal of 26859971 is 17995862.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26859971 - 2² = 26859967 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26859941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13429985 + 13429986.

It is an arithmetic number, because the mean of its divisors is an integer number (13429986).

Almost surely, 2^26859971 is an apocalyptic number.

26859971 is a deficient number, since it is larger than the sum of its proper divisors (1).

26859971 is an equidigital number, since it uses as much as digits as its factorization.

26859971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 47.

The square root of 26859971 is about 5182.6606101500. The cubic root of 26859971 is about 299.4804749057.

The spelling of 26859971 in words is "twenty-six million, eight hundred fifty-nine thousand, nine hundred seventy-one".