28839332 has 12 divisors (see below), whose sum is σ = 52663296. Its totient is φ = 13792680.

The previous prime is 28839323. The next prime is 28839347. The reversal of 28839332 is 23393882.

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, 156644 + ... + 156827.

It is an arithmetic number, because the mean of its divisors is an integer number (4388608).

Almost surely, 2^28839332 is an apocalyptic number.

It is an amenable number.

28839332 is a deficient number, since it is larger than the sum of its proper divisors (23823964).

28839332 is a wasteful number, since it uses less digits than its factorization.

28839332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313498 (or 313496 counting only the distinct ones).

The product of its digits is 62208, while the sum is 38.

The square root of 28839332 is about 5370.2264384288. The cubic root of 28839332 is about 306.6632487542.

The spelling of 28839332 in words is "twenty-eight million, eight hundred thirty-nine thousand, three hundred thirty-two".