28894816 has 12 divisors (see below), whose sum is σ = 56886732. Its totient is φ = 14447392.

The previous prime is 28894793. The next prime is 28894823. The reversal of 28894816 is 61849882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451450 + ... + 451513.

It is an arithmetic number, because the mean of its divisors is an integer number (4740561).

Almost surely, 2^28894816 is an apocalyptic number.

It is an amenable number.

28894816 is a deficient number, since it is larger than the sum of its proper divisors (27991916).

28894816 is an equidigital number, since it uses as much as digits as its factorization.

28894816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902973 (or 902965 counting only the distinct ones).

The product of its digits is 221184, while the sum is 46.

The square root of 28894816 is about 5375.3898463274. The cubic root of 28894816 is about 306.8597859426.

The spelling of 28894816 in words is "twenty-eight million, eight hundred ninety-four thousand, eight hundred sixteen".