28383656 has 32 divisors (see below), whose sum is σ = 63469440. Its totient is φ = 11635008.

The previous prime is 28383647. The next prime is 28383683. The reversal of 28383656 is 65638382.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9731 + ... + 12306.

It is an arithmetic number, because the mean of its divisors is an integer number (1983420).

Almost surely, 2^28383656 is an apocalyptic number.

It is an amenable number.

28383656 is an abundant number, since it is smaller than the sum of its proper divisors (35085784).

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

28383656 is a wasteful number, since it uses less digits than its factorization.

28383656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22073 (or 22069 counting only the distinct ones).

The product of its digits is 207360, while the sum is 41.

The square root of 28383656 is about 5327.6313686290. The cubic root of 28383656 is about 305.0395218874.

The spelling of 28383656 in words is "twenty-eight million, three hundred eighty-three thousand, six hundred fifty-six".