28974316 has 48 divisors (see below), whose sum is σ = 61689600. Its totient is φ = 11631168.

The previous prime is 28974289. The next prime is 28974317. The reversal of 28974316 is 61347982.

It is not an unprimeable number, because it can be changed into a prime (28974317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56670 + ... + 57178.

It is an arithmetic number, because the mean of its divisors is an integer number (1285200).

Almost surely, 2^28974316 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 28974316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30844800).

28974316 is an abundant number, since it is smaller than the sum of its proper divisors (32715284).

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

28974316 is a wasteful number, since it uses less digits than its factorization.

28974316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 28974316 is about 5382.7795793623. The cubic root of 28974316 is about 307.1409553360.

The spelling of 28974316 in words is "twenty-eight million, nine hundred seventy-four thousand, three hundred sixteen".