28783296 has 56 divisors (see below), whose sum is σ = 84622640. Its totient is φ = 9593856.

The previous prime is 28783219. The next prime is 28783301. The reversal of 28783296 is 69238782.

28783296 is a `hidden beast` number, since 287 + 83 + 296 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6601 + ... + 10056.

Almost surely, 2^28783296 is an apocalyptic number.

It is an amenable number.

28783296 is an abundant number, since it is smaller than the sum of its proper divisors (55839344).

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

28783296 is a wasteful number, since it uses less digits than its factorization.

28783296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16678 (or 16662 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 28783296 is about 5365.0066169577. The cubic root of 28783296 is about 306.4645002338.

The spelling of 28783296 in words is "twenty-eight million, seven hundred eighty-three thousand, two hundred ninety-six".