28979896 has 16 divisors (see below), whose sum is σ = 59277240. Its totient is φ = 13172640.

The previous prime is 28979861. The next prime is 28979897. The reversal of 28979896 is 69897982.

It is a self number, because there is not a number n which added to its sum of digits gives 28979896.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28979897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164571 + ... + 164746.

Almost surely, 2^28979896 is an apocalyptic number.

It is an amenable number.

28979896 is an abundant number, since it is smaller than the sum of its proper divisors (30297344).

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

28979896 is a wasteful number, since it uses less digits than its factorization.

28979896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329334 (or 329330 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 58.

The square root of 28979896 is about 5383.2978739802. The cubic root of 28979896 is about 307.1606709182.

The spelling of 28979896 in words is "twenty-eight million, nine hundred seventy-nine thousand, eight hundred ninety-six".