28965924 has 135 divisors (see below), whose sum is σ = 85715553. Its totient is φ = 8525088.

The previous prime is 28965919. The next prime is 28965949. The reversal of 28965924 is 42956982.

The square root of 28965924 is 5382.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 24681024 = 2070^2 + 4968^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28965924.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 1259377 + ... + 1259399.

Almost surely, 2^28965924 is an apocalyptic number.

28965924 is the 5382-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28965924

28965924 is an abundant number, since it is smaller than the sum of its proper divisors (56749629).

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

28965924 is a wasteful number, since it uses less digits than its factorization.

28965924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 41 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The cubic root of 28965924 is about 307.1112994644. Note that the first 3 decimals are identical.

The spelling of 28965924 in words is "twenty-eight million, nine hundred sixty-five thousand, nine hundred twenty-four".