28970316 has 36 divisors (see below), whose sum is σ = 73694712. Its totient is φ = 9595584.

The previous prime is 28970309. The next prime is 28970321. The reversal of 28970316 is 61307982.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3400 + ... + 8336.

Almost surely, 2^28970316 is an apocalyptic number.

It is an amenable number.

28970316 is an abundant number, since it is smaller than the sum of its proper divisors (44724396).

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

28970316 is a wasteful number, since it uses less digits than its factorization.

28970316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5110 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 28970316 is about 5382.4080112901. The cubic root of 28970316 is about 307.1268207445.

The spelling of 28970316 in words is "twenty-eight million, nine hundred seventy thousand, three hundred sixteen".