26879997 has 4 divisors (see below), whose sum is σ = 35840000. Its totient is φ = 17919996.

The previous prime is 26879989. The next prime is 26880001. The reversal of 26879997 is 79997862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 26879997 - 2³ = 26879989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26879947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4479997 + ... + 4480002.

It is an arithmetic number, because the mean of its divisors is an integer number (8960000).

Almost surely, 2^26879997 is an apocalyptic number.

It is an amenable number.

26879997 is a deficient number, since it is larger than the sum of its proper divisors (8960003).

26879997 is an equidigital number, since it uses as much as digits as its factorization.

26879997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960002.

The product of its digits is 3429216, while the sum is 57.

The square root of 26879997 is about 5184.5922694075. The cubic root of 26879997 is about 299.5548843446.

The spelling of 26879997 in words is "twenty-six million, eight hundred seventy-nine thousand, nine hundred ninety-seven".