28979316 has 48 divisors (see below), whose sum is σ = 75671680. Its totient is φ = 9590400.

The previous prime is 28979267. The next prime is 28979329. The reversal of 28979316 is 61397982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15420 + ... + 17196.

Almost surely, 2^28979316 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28979316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37835840).

28979316 is an abundant number, since it is smaller than the sum of its proper divisors (46692364).

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

28979316 is a wasteful number, since it uses less digits than its factorization.

28979316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1933 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 28979316 is about 5383.2440033868. The cubic root of 28979316 is about 307.1586217461.

The spelling of 28979316 in words is "twenty-eight million, nine hundred seventy-nine thousand, three hundred sixteen".