28332693 has 24 divisors (see below), whose sum is σ = 44600960. Its totient is φ = 17772480.

The previous prime is 28332679. The next prime is 28332709. The reversal of 28332693 is 39623382.

It is not a de Polignac number, because 28332693 - 2⁴ = 28332677 is a prime.

It is a super-3 number, since 3×28332693³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28332653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5988 + ... + 9618.

Almost surely, 2^28332693 is an apocalyptic number.

It is an amenable number.

28332693 is a deficient number, since it is larger than the sum of its proper divisors (16268267).

28332693 is a wasteful number, since it uses less digits than its factorization.

28332693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674 (or 3651 counting only the distinct ones).

The product of its digits is 46656, while the sum is 36.

The square root of 28332693 is about 5322.8463250408. The cubic root of 28332693 is about 304.8568458362.

The spelling of 28332693 in words is "twenty-eight million, three hundred thirty-two thousand, six hundred ninety-three".