28693324 has 12 divisors (see below), whose sum is σ = 54778248. Its totient is φ = 13042400.

The previous prime is 28693319. The next prime is 28693361. The reversal of 28693324 is 42339682.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326017 + ... + 326104.

It is an arithmetic number, because the mean of its divisors is an integer number (4564854).

Almost surely, 2^28693324 is an apocalyptic number.

It is an amenable number.

28693324 is a deficient number, since it is larger than the sum of its proper divisors (26084924).

28693324 is a wasteful number, since it uses less digits than its factorization.

28693324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652136 (or 652134 counting only the distinct ones).

The product of its digits is 62208, while the sum is 37.

The square root of 28693324 is about 5356.6149758966. The cubic root of 28693324 is about 306.1448471979.

The spelling of 28693324 in words is "twenty-eight million, six hundred ninety-three thousand, three hundred twenty-four".