28704782 has 16 divisors (see below), whose sum is σ = 47295360. Its totient is φ = 13005432.

The previous prime is 28704769. The next prime is 28704799. The reversal of 28704782 is 28740782.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 15548 + ... + 17295.

It is an arithmetic number, because the mean of its divisors is an integer number (2955960).

Almost surely, 2^28704782 is an apocalyptic number.

28704782 is a deficient number, since it is larger than the sum of its proper divisors (18590578).

28704782 is a wasteful number, since it uses less digits than its factorization.

28704782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32887.

The product of its (nonzero) digits is 50176, while the sum is 38.

The square root of 28704782 is about 5357.6843878676. The cubic root of 28704782 is about 306.1855923418.

The spelling of 28704782 in words is "twenty-eight million, seven hundred four thousand, seven hundred eighty-two".