28628316 has 36 divisors (see below), whose sum is σ = 75048792. Its totient is φ = 9542448.

The previous prime is 28628297. The next prime is 28628359. The reversal of 28628316 is 61382682.

28628316 is a `hidden beast` number, since 28 + 628 + 3 + 1 + 6 = 666.

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 a congruent number.

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, 13755 + ... + 15698.

Almost surely, 2^28628316 is an apocalyptic number.

It is an amenable number.

28628316 is an abundant number, since it is smaller than the sum of its proper divisors (46420476).

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

28628316 is a wasteful number, since it uses less digits than its factorization.

28628316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29472 (or 29458 counting only the distinct ones).

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

The square root of 28628316 is about 5350.5435237927. The cubic root of 28628316 is about 305.9134703434.

The spelling of 28628316 in words is "twenty-eight million, six hundred twenty-eight thousand, three hundred sixteen".