28660976 has 20 divisors (see below), whose sum is σ = 56713632. Its totient is φ = 14025216.

The previous prime is 28660909. The next prime is 28660991. The reversal of 28660976 is 67906682.

It is a congruent number.

It is an unprimeable number.

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, 18305 + ... + 19808.

Almost surely, 2^28660976 is an apocalyptic number.

It is an amenable number.

28660976 is a deficient number, since it is larger than the sum of its proper divisors (28052656).

28660976 is a wasteful number, since it uses less digits than its factorization.

28660976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38168 (or 38162 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 28660976 is about 5353.5946802125. The cubic root of 28660976 is about 306.0297577394.

The spelling of 28660976 in words is "twenty-eight million, six hundred sixty thousand, nine hundred seventy-six".