28326984 has 64 divisors (see below), whose sum is σ = 84464640. Its totient is φ = 7740480.

The previous prime is 28326979. The next prime is 28326989. The reversal of 28326984 is 48962382.

It is an interprime number because it is at equal distance from previous prime (28326979) and next prime (28326989).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (28326989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199 + ... + 7529.

It is an arithmetic number, because the mean of its divisors is an integer number (1319760).

Almost surely, 2^28326984 is an apocalyptic number.

28326984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28326984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42232320).

28326984 is an abundant number, since it is smaller than the sum of its proper divisors (56137656).

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

28326984 is a wasteful number, since it uses less digits than its factorization.

28326984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7370 (or 7366 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 28326984 is about 5322.3100247919. The cubic root of 28326984 is about 304.8363683776.

The spelling of 28326984 in words is "twenty-eight million, three hundred twenty-six thousand, nine hundred eighty-four".