28583332 has 12 divisors (see below), whose sum is σ = 51085440. Its totient is φ = 13987496.

The previous prime is 28583309. The next prime is 28583371. The reversal of 28583332 is 23338582.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 75832 + ... + 76207.

It is an arithmetic number, because the mean of its divisors is an integer number (4257120).

Almost surely, 2^28583332 is an apocalyptic number.

It is an amenable number.

28583332 is a deficient number, since it is larger than the sum of its proper divisors (22502108).

28583332 is a wasteful number, since it uses less digits than its factorization.

28583332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152090 (or 152088 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 28583332 is about 5346.3381860859. The cubic root of 28583332 is about 305.7531579035.

The spelling of 28583332 in words is "twenty-eight million, five hundred eighty-three thousand, three hundred thirty-two".