27992752 has 20 divisors (see below), whose sum is σ = 55986496. Its totient is φ = 13544640.

The previous prime is 27992749. The next prime is 27992759. The reversal of 27992752 is 25729972.

27992752 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 27992699 and 27992708.

It is not an unprimeable number, because it can be changed into a prime (27992759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27723 + ... + 28714.

Almost surely, 2^27992752 is an apocalyptic number.

It is an amenable number.

27992752 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.

27992752 is a wasteful number, since it uses less digits than its factorization.

27992752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56476 (or 56470 counting only the distinct ones).

The product of its digits is 158760, while the sum is 43.

The square root of 27992752 is about 5290.8177061774. The cubic root of 27992752 is about 303.6326935016.

The spelling of 27992752 in words is "twenty-seven million, nine hundred ninety-two thousand, seven hundred fifty-two".