28656484 has 12 divisors (see below), whose sum is σ = 52788400. Its totient is φ = 13574088.

The previous prime is 28656479. The next prime is 28656491. The reversal of 28656484 is 48465682.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28656484.

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, 188454 + ... + 188605.

Almost surely, 2^28656484 is an apocalyptic number.

It is an amenable number.

28656484 is a deficient number, since it is larger than the sum of its proper divisors (24131916).

28656484 is a wasteful number, since it uses less digits than its factorization.

28656484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377082 (or 377080 counting only the distinct ones).

The product of its digits is 368640, while the sum is 43.

The square root of 28656484 is about 5353.1751325732. The cubic root of 28656484 is about 306.0137690132.

The spelling of 28656484 in words is "twenty-eight million, six hundred fifty-six thousand, four hundred eighty-four".