27987492 has 24 divisors (see below), whose sum is σ = 70327936. Its totient is φ = 8611488.

The previous prime is 27987467. The next prime is 27987493. The reversal of 27987492 is 29478972.

It is not an unprimeable number, because it can be changed into a prime (27987493) 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 7 ways as a sum of consecutive naturals, for example, 89548 + ... + 89859.

Almost surely, 2^27987492 is an apocalyptic number.

It is an amenable number.

27987492 is an abundant number, since it is smaller than the sum of its proper divisors (42340444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27987492 is a wasteful number, since it uses less digits than its factorization.

27987492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179427 (or 179425 counting only the distinct ones).

The product of its digits is 508032, while the sum is 48.

The square root of 27987492 is about 5290.3205952003. The cubic root of 27987492 is about 303.6136741972.

The spelling of 27987492 in words is "twenty-seven million, nine hundred eighty-seven thousand, four hundred ninety-two".