28107932 has 12 divisors (see below), whose sum is σ = 51327696. Its totient is φ = 13442880.

The previous prime is 28107929. The next prime is 28107971. The reversal of 28107932 is 23970182.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152669 + ... + 152852.

It is an arithmetic number, because the mean of its divisors is an integer number (4277308).

Almost surely, 2^28107932 is an apocalyptic number.

It is an amenable number.

28107932 is a deficient number, since it is larger than the sum of its proper divisors (23219764).

28107932 is a wasteful number, since it uses less digits than its factorization.

28107932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305548 (or 305546 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 28107932 is about 5301.6914282142. The cubic root of 28107932 is about 304.0485696866.

The spelling of 28107932 in words is "twenty-eight million, one hundred seven thousand, nine hundred thirty-two".