26939879 has 4 divisors (see below), whose sum is σ = 27042576. Its totient is φ = 26837184.

The previous prime is 26939867. The next prime is 26939881. The reversal of 26939879 is 97893962.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 26939879 - 2⁸ = 26939623 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26939879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26939819) 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, 50954 + ... + 51479.

It is an arithmetic number, because the mean of its divisors is an integer number (6760644).

Almost surely, 2^26939879 is an apocalyptic number.

26939879 is a deficient number, since it is larger than the sum of its proper divisors (102697).

26939879 is a wasteful number, since it uses less digits than its factorization.

26939879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102696.

The product of its digits is 1469664, while the sum is 53.

The square root of 26939879 is about 5190.3640527424. The cubic root of 26939879 is about 299.7771641512. Note that the first 3 decimals are identical.

The spelling of 26939879 in words is "twenty-six million, nine hundred thirty-nine thousand, eight hundred seventy-nine".