28715996 has 12 divisors (see below), whose sum is σ = 51611448. Its totient is φ = 13969872.

The previous prime is 28715971. The next prime is 28716001. The reversal of 28715996 is 69951782.

It is a self number, because there is not a number n which added to its sum of digits gives 28715996.

It is a congruent number.

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, 96866 + ... + 97161.

It is an arithmetic number, because the mean of its divisors is an integer number (4300954).

Almost surely, 2^28715996 is an apocalyptic number.

It is an amenable number.

28715996 is a deficient number, since it is larger than the sum of its proper divisors (22895452).

28715996 is a wasteful number, since it uses less digits than its factorization.

28715996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194068 (or 194066 counting only the distinct ones).

The product of its digits is 272160, while the sum is 47.

The square root of 28715996 is about 5358.7308198864. The cubic root of 28715996 is about 306.2254593136.

The spelling of 28715996 in words is "twenty-eight million, seven hundred fifteen thousand, nine hundred ninety-six".