28979708 has 6 divisors (see below), whose sum is σ = 50714496. Its totient is φ = 14489852.

The previous prime is 28979659. The next prime is 28979719. The reversal of 28979708 is 80797982.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3622460 + ... + 3622467.

It is an arithmetic number, because the mean of its divisors is an integer number (8452416).

Almost surely, 2^28979708 is an apocalyptic number.

It is an amenable number.

28979708 is a deficient number, since it is larger than the sum of its proper divisors (21734788).

28979708 is a wasteful number, since it uses less digits than its factorization.

28979708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7244931 (or 7244929 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 50.

The square root of 28979708 is about 5383.2804125366. The cubic root of 28979708 is about 307.1600067068.

It can be divided in two parts, 289 and 79708, that added together give a palindrome (79997).

The spelling of 28979708 in words is "twenty-eight million, nine hundred seventy-nine thousand, seven hundred eight".