28495664 has 20 divisors (see below), whose sum is σ = 55833480. Its totient is φ = 14087040.

The previous prime is 28495651. The next prime is 28495669. The reversal of 28495664 is 46659482.

It is not an unprimeable number, because it can be changed into a prime (28495669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8582 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (2791674).

Almost surely, 2^28495664 is an apocalyptic number.

It is an amenable number.

28495664 is a deficient number, since it is larger than the sum of its proper divisors (27337816).

28495664 is a wasteful number, since it uses less digits than its factorization.

28495664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20108 (or 20102 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 28495664 is about 5338.1330069604. The cubic root of 28495664 is about 305.4402457145.

The spelling of 28495664 in words is "twenty-eight million, four hundred ninety-five thousand, six hundred sixty-four".