27904532 has 12 divisors (see below), whose sum is σ = 48923616. Its totient is φ = 13926360.

The previous prime is 27904501. The next prime is 27904537. The reversal of 27904532 is 23540972.

It is a happy number.

It is a super-2 number, since 2×27904532² = 1557325812278048, which contains 22 as substring.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27904537) 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, 3944 + ... + 8447.

It is an arithmetic number, because the mean of its divisors is an integer number (4076968).

Almost surely, 2^27904532 is an apocalyptic number.

It is an amenable number.

27904532 is a deficient number, since it is larger than the sum of its proper divisors (21019084).

27904532 is a wasteful number, since it uses less digits than its factorization.

27904532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12958 (or 12956 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 27904532 is about 5282.4740415832. The cubic root of 27904532 is about 303.3133886442.

The spelling of 27904532 in words is "twenty-seven million, nine hundred four thousand, five hundred thirty-two".