22861091 has 8 divisors (see below), whose sum is σ = 24974784. Its totient is φ = 20753320.

The previous prime is 22861063. The next prime is 22861093. The reversal of 22861091 is 19016822.

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 22861091 - 2¹⁰ = 22860067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22861093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11900 + ... + 13686.

It is an arithmetic number, because the mean of its divisors is an integer number (3121848).

Almost surely, 2^22861091 is an apocalyptic number.

22861091 is a deficient number, since it is larger than the sum of its proper divisors (2113693).

22861091 is a wasteful number, since it uses less digits than its factorization.

22861091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2961.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 22861091 is about 4781.3273261721. The cubic root of 22861091 is about 283.8130216386.

The spelling of 22861091 in words is "twenty-two million, eight hundred sixty-one thousand, ninety-one".