28944896 has 20 divisors (see below), whose sum is σ = 57834282. Its totient is φ = 14472192.

The previous prime is 28944859. The next prime is 28944901. The reversal of 28944896 is 69844982.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 28729600 + 215296 = 5360^2 + 464^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27755 + ... + 28778.

Almost surely, 2^28944896 is an apocalyptic number.

It is an amenable number.

28944896 is a deficient number, since it is larger than the sum of its proper divisors (28889386).

28944896 is an frugal number, since it uses more digits than its factorization.

28944896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56551 (or 56535 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 28944896 is about 5380.0460964568. The cubic root of 28944896 is about 307.0369649952.

The spelling of 28944896 in words is "twenty-eight million, nine hundred forty-four thousand, eight hundred ninety-six".