28753888 has 24 divisors (see below), whose sum is σ = 56731752. Its totient is φ = 14345856.

The previous prime is 28753861. The next prime is 28753903. The reversal of 28753888 is 88835782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23631 + ... + 24817.

It is an arithmetic number, because the mean of its divisors is an integer number (2363823).

Almost surely, 2^28753888 is an apocalyptic number.

It is an amenable number.

28753888 is a deficient number, since it is larger than the sum of its proper divisors (27977864).

28753888 is a wasteful number, since it uses less digits than its factorization.

28753888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1946 counting only the distinct ones).

The product of its digits is 860160, while the sum is 49.

The square root of 28753888 is about 5362.2651929945. The cubic root of 28753888 is about 306.3600926967.

The spelling of 28753888 in words is "twenty-eight million, seven hundred fifty-three thousand, eight hundred eighty-eight".