28951892 has 24 divisors (see below), whose sum is σ = 52684800. Its totient is φ = 13906080.

The previous prime is 28951849. The next prime is 28951903. The reversal of 28951892 is 29815982.

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 7 ways as a sum of consecutive naturals, for example, 17693 + ... + 19259.

It is an arithmetic number, because the mean of its divisors is an integer number (2195200).

Almost surely, 2^28951892 is an apocalyptic number.

It is an amenable number.

28951892 is a deficient number, since it is larger than the sum of its proper divisors (23732908).

28951892 is a wasteful number, since it uses less digits than its factorization.

28951892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1751 (or 1749 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 28951892 is about 5380.6962374771. The cubic root of 28951892 is about 307.0617000131.

The spelling of 28951892 in words is "twenty-eight million, nine hundred fifty-one thousand, eight hundred ninety-two".