22791099 has 8 divisors (see below), whose sum is σ = 31034880. Its totient is φ = 14870696.

The previous prime is 22791073. The next prime is 22791103. The reversal of 22791099 is 99019722.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22791099 - 2⁸ = 22790843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22791019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80679 + ... + 80960.

It is an arithmetic number, because the mean of its divisors is an integer number (3879360).

Almost surely, 2^22791099 is an apocalyptic number.

22791099 is a deficient number, since it is larger than the sum of its proper divisors (8243781).

22791099 is a wasteful number, since it uses less digits than its factorization.

22791099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161689.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 22791099 is about 4774.0024088808. The cubic root of 22791099 is about 283.5230828917.

The spelling of 22791099 in words is "twenty-two million, seven hundred ninety-one thousand, ninety-nine".