28822665 has 32 divisors (see below), whose sum is σ = 48107520. Its totient is φ = 14717696.

The previous prime is 28822649. The next prime is 28822669. The reversal of 28822665 is 56622882.

It is a cyclic number.

It is not a de Polignac number, because 28822665 - 2⁴ = 28822649 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28822669) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75064 + ... + 75446.

It is an arithmetic number, because the mean of its divisors is an integer number (1503360).

Almost surely, 2^28822665 is an apocalyptic number.

It is an amenable number.

28822665 is a deficient number, since it is larger than the sum of its proper divisors (19284855).

28822665 is a wasteful number, since it uses less digits than its factorization.

28822665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its digits is 92160, while the sum is 39.

The square root of 28822665 is about 5368.6744173958. The cubic root of 28822665 is about 306.6041611476.

The spelling of 28822665 in words is "twenty-eight million, eight hundred twenty-two thousand, six hundred sixty-five".