28833681 has 8 divisors (see below), whose sum is σ = 38510080. Its totient is φ = 19189872.

The previous prime is 28833667. The next prime is 28833757. The reversal of 28833681 is 18633882.

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

It is not a de Polignac number, because 28833681 - 2¹⁴ = 28817297 is a prime.

It is a super-2 number, since 2×28833681² = 1662762320019522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28833631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6001 + ... + 9678.

It is an arithmetic number, because the mean of its divisors is an integer number (4813760).

Almost surely, 2^28833681 is an apocalyptic number.

It is an amenable number.

28833681 is a deficient number, since it is larger than the sum of its proper divisors (9676399).

28833681 is a wasteful number, since it uses less digits than its factorization.

28833681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16295.

The product of its digits is 55296, while the sum is 39.

The square root of 28833681 is about 5369.7002709649. The cubic root of 28833681 is about 306.6432174624.

The spelling of 28833681 in words is "twenty-eight million, eight hundred thirty-three thousand, six hundred eighty-one".