26979012 has 36 divisors (see below), whose sum is σ = 71788080. Its totient is φ = 8519472.

The previous prime is 26978981. The next prime is 26979061. The reversal of 26979012 is 21097962.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×26979012² = 1455734176992288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19038 + ... + 20405.

Almost surely, 2^26979012 is an apocalyptic number.

It is an amenable number.

26979012 is an abundant number, since it is smaller than the sum of its proper divisors (44809068).

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

26979012 is a wasteful number, since it uses less digits than its factorization.

26979012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39472 (or 39467 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 26979012 is about 5194.1324588424. The cubic root of 26979012 is about 299.9222465164.

The spelling of 26979012 in words is "twenty-six million, nine hundred seventy-nine thousand, twelve".