22990791 has 8 divisors (see below), whose sum is σ = 31402224. Its totient is φ = 14953280.

The previous prime is 22990763. The next prime is 22990811. The reversal of 22990791 is 19709922.

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 22990791 - 2⁷ = 22990663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22990091) 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, 93336 + ... + 93581.

It is an arithmetic number, because the mean of its divisors is an integer number (3925278).

Almost surely, 2^22990791 is an apocalyptic number.

22990791 is a deficient number, since it is larger than the sum of its proper divisors (8411433).

22990791 is a wasteful number, since it uses less digits than its factorization.

22990791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186961.

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

The square root of 22990791 is about 4794.8713225696. The cubic root of 22990791 is about 284.3487375981.

The spelling of 22990791 in words is "twenty-two million, nine hundred ninety thousand, seven hundred ninety-one".