26979798 has 8 divisors (see below), whose sum is σ = 53959608. Its totient is φ = 8993264.

The previous prime is 26979781. The next prime is 26979803. The reversal of 26979798 is 89797962.

It is a sphenic number, since it is the product of 3 distinct primes.

26979798 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248311 + ... + 2248322.

It is an arithmetic number, because the mean of its divisors is an integer number (6744951).

Almost surely, 2^26979798 is an apocalyptic number.

26979798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26979798 is a wasteful number, since it uses less digits than its factorization.

26979798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4496638.

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

The square root of 26979798 is about 5194.2081205897. The cubic root of 26979798 is about 299.9251591088.

The spelling of 26979798 in words is "twenty-six million, nine hundred seventy-nine thousand, seven hundred ninety-eight".