28997652 has 24 divisors (see below), whose sum is σ = 69235936. Its totient is φ = 9440928.

The previous prime is 28997623. The next prime is 28997653. The reversal of 28997652 is 25679982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28997653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27583 + ... + 28614.

Almost surely, 2^28997652 is an apocalyptic number.

It is an amenable number.

28997652 is an abundant number, since it is smaller than the sum of its proper divisors (40238284).

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

28997652 is a wasteful number, since it uses less digits than its factorization.

28997652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56247 (or 56245 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 28997652 is about 5384.9467963946. The cubic root of 28997652 is about 307.2233906208.

The spelling of 28997652 in words is "twenty-eight million, nine hundred ninety-seven thousand, six hundred fifty-two".