28822790 has 8 divisors (see below), whose sum is σ = 51881040. Its totient is φ = 11529112.

The previous prime is 28822789. The next prime is 28822817. The reversal of 28822790 is 9722882.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441130 + ... + 1441149.

It is an arithmetic number, because the mean of its divisors is an integer number (6485130).

Almost surely, 2^28822790 is an apocalyptic number.

28822790 is a deficient number, since it is larger than the sum of its proper divisors (23058250).

28822790 is a wasteful number, since it uses less digits than its factorization.

28822790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2882286.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 28822790 is about 5368.6860589906. The cubic root of 28822790 is about 306.6046043806.

The spelling of 28822790 in words is "twenty-eight million, eight hundred twenty-two thousand, seven hundred ninety".