28607750 has 32 divisors (see below), whose sum is σ = 54879552. Its totient is φ = 11160000.

The previous prime is 28607737. The next prime is 28607773. The reversal of 28607750 is 5770682.

It is a self number, because there is not a number n which added to its sum of digits gives 28607750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8855 + ... + 11645.

It is an arithmetic number, because the mean of its divisors is an integer number (1714986).

Almost surely, 2^28607750 is an apocalyptic number.

28607750 is a deficient number, since it is larger than the sum of its proper divisors (26271802).

28607750 is a wasteful number, since it uses less digits than its factorization.

28607750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2849 (or 2839 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 28607750 is about 5348.6213176855. The cubic root of 28607750 is about 305.8401987898.

The spelling of 28607750 in words is "twenty-eight million, six hundred seven thousand, seven hundred fifty".