26798971 has 2 divisors, whose sum is σ = 26798972. Its totient is φ = 26798970.

The previous prime is 26798969. The next prime is 26798983. The reversal of 26798971 is 17989762.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26798971 - 2¹ = 26798969 is a prime.

Together with 26798969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (26798671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13399485 + 13399486.

It is an arithmetic number, because the mean of its divisors is an integer number (13399486).

Almost surely, 2^26798971 is an apocalyptic number.

26798971 is a deficient number, since it is larger than the sum of its proper divisors (1).

26798971 is an equidigital number, since it uses as much as digits as its factorization.

26798971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 26798971 is about 5176.7722569184. The cubic root of 26798971 is about 299.2535926083.

The spelling of 26798971 in words is "twenty-six million, seven hundred ninety-eight thousand, nine hundred seventy-one".