28690924 has 6 divisors (see below), whose sum is σ = 50209124. Its totient is φ = 14345460.

The previous prime is 28690919. The next prime is 28690927. The reversal of 28690924 is 42909682.

It is not an unprimeable number, because it can be changed into a prime (28690927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3586362 + ... + 3586369.

Almost surely, 2^28690924 is an apocalyptic number.

It is an amenable number.

28690924 is a deficient number, since it is larger than the sum of its proper divisors (21518200).

28690924 is a wasteful number, since it uses less digits than its factorization.

28690924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172735 (or 7172733 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 28690924 is about 5356.3909491373. The cubic root of 28690924 is about 306.1363113201.

The spelling of 28690924 in words is "twenty-eight million, six hundred ninety thousand, nine hundred twenty-four".