28832663 has 6 divisors (see below), whose sum is σ = 30628776. Its totient is φ = 27136352.

The previous prime is 28832659. The next prime is 28832669. The reversal of 28832663 is 36623882.

It is a happy number.

It is not a de Polignac number, because 28832663 - 2² = 28832659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28832669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49595 + ... + 50172.

It is an arithmetic number, because the mean of its divisors is an integer number (5104796).

Almost surely, 2^28832663 is an apocalyptic number.

28832663 is a deficient number, since it is larger than the sum of its proper divisors (1796113).

28832663 is an equidigital number, since it uses as much as digits as its factorization.

28832663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99801 (or 99784 counting only the distinct ones).

The product of its digits is 82944, while the sum is 38.

The square root of 28832663 is about 5369.6054789901. The cubic root of 28832663 is about 306.6396086450.

The spelling of 28832663 in words is "twenty-eight million, eight hundred thirty-two thousand, six hundred sixty-three".