28859944 has 8 divisors (see below), whose sum is σ = 54112410. Its totient is φ = 14429968.

The previous prime is 28859939. The next prime is 28859951. The reversal of 28859944 is 44995882.

It can be written as a sum of positive squares in only one way, i.e., 28751044 + 108900 = 5362^2 + 330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1803739 + ... + 1803754.

Almost surely, 2^28859944 is an apocalyptic number.

It is an amenable number.

28859944 is a deficient number, since it is larger than the sum of its proper divisors (25252466).

28859944 is a wasteful number, since it uses less digits than its factorization.

28859944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607499 (or 3607495 counting only the distinct ones).

The product of its digits is 829440, while the sum is 49.

The square root of 28859944 is about 5372.1451953573. The cubic root of 28859944 is about 306.7362906400.

The spelling of 28859944 in words is "twenty-eight million, eight hundred fifty-nine thousand, nine hundred forty-four".