28083722 has 16 divisors (see below), whose sum is σ = 43303680. Its totient is φ = 13653168.

The previous prime is 28083719. The next prime is 28083733. The reversal of 28083722 is 22738082.

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, 14804 + ... + 16592.

It is an arithmetic number, because the mean of its divisors is an integer number (2706480).

Almost surely, 2^28083722 is an apocalyptic number.

28083722 is a deficient number, since it is larger than the sum of its proper divisors (15219958).

28083722 is a wasteful number, since it uses less digits than its factorization.

28083722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2005.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28083722 is about 5299.4077027532. The cubic root of 28083722 is about 303.9612499662.

The spelling of 28083722 in words is "twenty-eight million, eighty-three thousand, seven hundred twenty-two".