28333669 has 8 divisors (see below), whose sum is σ = 34872320. Its totient is φ = 22417776.

The previous prime is 28333663. The next prime is 28333673. The reversal of 28333669 is 96633382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28333669 - 2⁵ = 28333637 is a prime.

It is a super-2 number, since 2×28333669² = 1605593598003122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28333663) 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, 155589 + ... + 155770.

It is an arithmetic number, because the mean of its divisors is an integer number (4359040).

Almost surely, 2^28333669 is an apocalyptic number.

It is an amenable number.

28333669 is a deficient number, since it is larger than the sum of its proper divisors (6538651).

28333669 is a wasteful number, since it uses less digits than its factorization.

28333669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311379.

The product of its digits is 139968, while the sum is 40.

The square root of 28333669 is about 5322.9380045234. The cubic root of 28333669 is about 304.8603463490.

The spelling of 28333669 in words is "twenty-eight million, three hundred thirty-three thousand, six hundred sixty-nine".