28002984 has 32 divisors (see below), whose sum is σ = 70187040. Its totient is φ = 9310400.

The previous prime is 28002971. The next prime is 28003007. The reversal of 28002984 is 48920082.

It is a super-2 number, since 2×28002984² = 1568334225808512, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9799 + ... + 12329.

It is an arithmetic number, because the mean of its divisors is an integer number (2193345).

Almost surely, 2^28002984 is an apocalyptic number.

28002984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28002984 is an abundant number, since it is smaller than the sum of its proper divisors (42184056).

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

28002984 is a wasteful number, since it uses less digits than its factorization.

28002984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001 (or 2997 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 28002984 is about 5291.7845761142. The cubic root of 28002984 is about 303.6696839252.

The spelling of 28002984 in words is "twenty-eight million, two thousand, nine hundred eighty-four".