27984984 has 16 divisors (see below), whose sum is σ = 69962520. Its totient is φ = 9328320.

The previous prime is 27984961. The next prime is 27984989. The reversal of 27984984 is 48948972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27984989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 582997 + ... + 583044.

Almost surely, 2^27984984 is an apocalyptic number.

27984984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

27984984 is an abundant number, since it is smaller than the sum of its proper divisors (41977536).

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

27984984 is a wasteful number, since it uses less digits than its factorization.

27984984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166050 (or 1166046 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 27984984 is about 5290.0835532154. The cubic root of 27984984 is about 303.6046048381.

The spelling of 27984984 in words is "twenty-seven million, nine hundred eighty-four thousand, nine hundred eighty-four".