28862316 has 72 divisors (see below), whose sum is σ = 84992544. Its totient is φ = 8087040.

The previous prime is 28862303. The next prime is 28862329. The reversal of 28862316 is 61326882.

28862316 is a `hidden beast` number, since 28 + 8 + 623 + 1 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (28862303) and next prime (28862329).

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 23 ways as a sum of consecutive naturals, for example, 12276 + ... + 14436.

It is an arithmetic number, because the mean of its divisors is an integer number (1180452).

Almost surely, 2^28862316 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 28862316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42496272).

28862316 is an abundant number, since it is smaller than the sum of its proper divisors (56130228).

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

28862316 is a wasteful number, since it uses less digits than its factorization.

28862316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231 (or 2226 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 28862316 is about 5372.3659592399. The cubic root of 28862316 is about 306.7446939659.

The spelling of 28862316 in words is "twenty-eight million, eight hundred sixty-two thousand, three hundred sixteen".