22089691 has 8 divisors (see below), whose sum is σ = 23877504. Its totient is φ = 20314560.

The previous prime is 22089667. The next prime is 22089707. The reversal of 22089691 is 19698022.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22089691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22089691.

It is not an unprimeable number, because it can be changed into a prime (22089631) 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, 630 + ... + 6676.

It is an arithmetic number, because the mean of its divisors is an integer number (2984688).

Almost surely, 2^22089691 is an apocalyptic number.

22089691 is a deficient number, since it is larger than the sum of its proper divisors (1787813).

22089691 is a wasteful number, since it uses less digits than its factorization.

22089691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6341.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 22089691 is about 4699.9671275446. The cubic root of 22089691 is about 280.5842011742.

The spelling of 22089691 in words is "twenty-two million, eighty-nine thousand, six hundred ninety-one".