28944956 has 12 divisors (see below), whose sum is σ = 50747592. Its totient is φ = 14445648.

The previous prime is 28944947. The next prime is 28944983. The reversal of 28944956 is 65944982.

It is a self number, because there is not a number n which added to its sum of digits gives 28944956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175 + ... + 8678.

It is an arithmetic number, because the mean of its divisors is an integer number (4228966).

Almost surely, 2^28944956 is an apocalyptic number.

It is an amenable number.

28944956 is a deficient number, since it is larger than the sum of its proper divisors (21802636).

28944956 is a wasteful number, since it uses less digits than its factorization.

28944956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13420 (or 13418 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 28944956 is about 5380.0516726143. The cubic root of 28944956 is about 307.0371771478.

The spelling of 28944956 in words is "twenty-eight million, nine hundred forty-four thousand, nine hundred fifty-six".