28472750 has 16 divisors (see below), whose sum is σ = 53301456. Its totient is φ = 11389000.

The previous prime is 28472747. The next prime is 28472767. The reversal of 28472750 is 5727482.

It is a self number, because there is not a number n which added to its sum of digits gives 28472750.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56696 + ... + 57195.

It is an arithmetic number, because the mean of its divisors is an integer number (3331341).

Almost surely, 2^28472750 is an apocalyptic number.

28472750 is a deficient number, since it is larger than the sum of its proper divisors (24828706).

28472750 is a wasteful number, since it uses less digits than its factorization.

28472750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113908 (or 113898 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 35.

The square root of 28472750 is about 5335.9863193228. The cubic root of 28472750 is about 305.3583533184.

The spelling of 28472750 in words is "twenty-eight million, four hundred seventy-two thousand, seven hundred fifty".