28790316 has 60 divisors (see below), whose sum is σ = 79706088. Its totient is φ = 9030528.

The previous prime is 28790303. The next prime is 28790371. The reversal of 28790316 is 61309782.

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 19 ways as a sum of consecutive naturals, for example, 2895 + ... + 8121.

Almost surely, 2^28790316 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 28790316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39853044).

28790316 is an abundant number, since it is smaller than the sum of its proper divisors (50915772).

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

28790316 is a wasteful number, since it uses less digits than its factorization.

28790316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5260 (or 5249 counting only the distinct ones).

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

The square root of 28790316 is about 5365.6608167121. The cubic root of 28790316 is about 306.4894128997.

The spelling of 28790316 in words is "twenty-eight million, seven hundred ninety thousand, three hundred sixteen".