27921952 has 12 divisors (see below), whose sum is σ = 54971406. Its totient is φ = 13960960.

The previous prime is 27921923. The next prime is 27921967. The reversal of 27921952 is 25912972.

It can be written as a sum of positive squares in only one way, i.e., 27920656 + 1296 = 5284^2 + 36^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436249 + ... + 436312.

Almost surely, 2^27921952 is an apocalyptic number.

It is an amenable number.

27921952 is a deficient number, since it is larger than the sum of its proper divisors (27049454).

27921952 is an equidigital number, since it uses as much as digits as its factorization.

27921952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872571 (or 872563 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 27921952 is about 5284.1226329448. The cubic root of 27921952 is about 303.3764921348.

The spelling of 27921952 in words is "twenty-seven million, nine hundred twenty-one thousand, nine hundred fifty-two".