28997364 has 24 divisors (see below), whose sum is σ = 73811808. Its totient is φ = 8787040.

The previous prime is 28997347. The next prime is 28997377. The reversal of 28997364 is 46379982.

It is a congruent number.

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, 109707 + ... + 109970.

It is an arithmetic number, because the mean of its divisors is an integer number (3075492).

Almost surely, 2^28997364 is an apocalyptic number.

It is an amenable number.

28997364 is an abundant number, since it is smaller than the sum of its proper divisors (44814444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28997364 is a wasteful number, since it uses less digits than its factorization.

28997364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219695 (or 219693 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 28997364 is about 5384.9200551169. The cubic root of 28997364 is about 307.2223735197. Note that the first 3 decimals are identical.

The spelling of 28997364 in words is "twenty-eight million, nine hundred ninety-seven thousand, three hundred sixty-four".