26862971 has 2 divisors, whose sum is σ = 26862972. Its totient is φ = 26862970.

The previous prime is 26862949. The next prime is 26862973. The reversal of 26862971 is 17926862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26862971 is a prime.

It is a Sophie Germain prime.

Together with 26862973, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (26862973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13431485 + 13431486.

It is an arithmetic number, because the mean of its divisors is an integer number (13431486).

Almost surely, 2^26862971 is an apocalyptic number.

26862971 is a deficient number, since it is larger than the sum of its proper divisors (1).

26862971 is an equidigital number, since it uses as much as digits as its factorization.

26862971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 26862971 is about 5182.9500286999. The cubic root of 26862971 is about 299.4916241852.

The spelling of 26862971 in words is "twenty-six million, eight hundred sixty-two thousand, nine hundred seventy-one".