28314664 has 16 divisors (see below), whose sum is σ = 60674400. Its totient is φ = 12134832.

The previous prime is 28314653. The next prime is 28314709. The reversal of 28314664 is 46641382.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252754 + ... + 252865.

It is an arithmetic number, because the mean of its divisors is an integer number (3792150).

Almost surely, 2^28314664 is an apocalyptic number.

It is an amenable number.

28314664 is an abundant number, since it is smaller than the sum of its proper divisors (32359736).

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

28314664 is a wasteful number, since it uses less digits than its factorization.

28314664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505632 (or 505628 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 28314664 is about 5321.1525067414. The cubic root of 28314664 is about 304.7921687239.

The spelling of 28314664 in words is "twenty-eight million, three hundred fourteen thousand, six hundred sixty-four".