27894979 has 16 divisors (see below), whose sum is σ = 32773120. Its totient is φ = 23250240.

The previous prime is 27894973. The next prime is 27894989. The reversal of 27894979 is 97949872.

It is a cyclic number.

It is not a de Polignac number, because 27894979 - 2⁷ = 27894851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27894973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40024 + ... + 40714.

It is an arithmetic number, because the mean of its divisors is an integer number (2048320).

Almost surely, 2^27894979 is an apocalyptic number.

27894979 is a deficient number, since it is larger than the sum of its proper divisors (4878141).

27894979 is an equidigital number, since it uses as much as digits as its factorization.

27894979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850.

The product of its digits is 2286144, while the sum is 55.

The square root of 27894979 is about 5281.5697477171. The cubic root of 27894979 is about 303.2787720030.

The spelling of 27894979 in words is "twenty-seven million, eight hundred ninety-four thousand, nine hundred seventy-nine".