28799433 has 24 divisors (see below), whose sum is σ = 45165120. Its totient is φ = 17578080.

The previous prime is 28799429. The next prime is 28799447. The reversal of 28799433 is 33499782.

It is a happy number.

It is not a de Polignac number, because 28799433 - 2² = 28799429 is a prime.

It is a super-2 number, since 2×28799433² = 1658814682242978, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28799333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14388 + ... + 16266.

It is an arithmetic number, because the mean of its divisors is an integer number (1881880).

Almost surely, 2^28799433 is an apocalyptic number.

It is an amenable number.

28799433 is a deficient number, since it is larger than the sum of its proper divisors (16365687).

28799433 is a wasteful number, since it uses less digits than its factorization.

28799433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029 (or 2026 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 28799433 is about 5366.5103186335. The cubic root of 28799433 is about 306.5217613820.

The spelling of 28799433 in words is "twenty-eight million, seven hundred ninety-nine thousand, four hundred thirty-three".