28979000 has 32 divisors (see below), whose sum is σ = 67813200. Its totient is φ = 11591200.

The previous prime is 28978993. The next prime is 28979051. The reversal of 28979000 is 97982.

It is a congruent number.

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, 13490 + ... + 15489.

Almost surely, 2^28979000 is an apocalyptic number.

28979000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28979000 is an abundant number, since it is smaller than the sum of its proper divisors (38834200).

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

28979000 is a wasteful number, since it uses less digits than its factorization.

28979000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29000 (or 28986 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 28979000 is about 5383.2146529746. The cubic root of 28979000 is about 307.1575052892.

The spelling of 28979000 in words is "twenty-eight million, nine hundred seventy-nine thousand".