28879000 has 32 divisors (see below), whose sum is σ = 67579200. Its totient is φ = 11551200.

The previous prime is 28878991. The next prime is 28879001. The reversal of 28879000 is 97882.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28879001) 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, 13440 + ... + 15439.

It is an arithmetic number, because the mean of its divisors is an integer number (2111850).

Almost surely, 2^28879000 is an apocalyptic number.

28879000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28879000 is an abundant number, since it is smaller than the sum of its proper divisors (38700200).

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

28879000 is a wasteful number, since it uses less digits than its factorization.

28879000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28900 (or 28886 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 28879000 is about 5373.9184958464. The cubic root of 28879000 is about 306.8037876608.

The spelling of 28879000 in words is "twenty-eight million, eight hundred seventy-nine thousand".