27988982 has 32 divisors (see below), whose sum is σ = 49704192. Its totient is φ = 11572704.

The previous prime is 27988979. The next prime is 27988991. The reversal of 27988982 is 28988972.

It is a super-2 number, since 2×27988982² = 1566766226792648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49433 + ... + 49995.

It is an arithmetic number, because the mean of its divisors is an integer number (1553256).

Almost surely, 2^27988982 is an apocalyptic number.

27988982 is a deficient number, since it is larger than the sum of its proper divisors (21715210).

27988982 is a wasteful number, since it uses less digits than its factorization.

27988982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692.

The product of its digits is 1161216, while the sum is 53.

The square root of 27988982 is about 5290.4614165496. The cubic root of 27988982 is about 303.6190620367.

The spelling of 27988982 in words is "twenty-seven million, nine hundred eighty-eight thousand, nine hundred eighty-two".