22620689 has 8 divisors (see below), whose sum is σ = 27840960. Its totient is φ = 17897616.

The previous prime is 22620683. The next prime is 22620701. The reversal of 22620689 is 98602622.

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 22620689 - 2¹⁶ = 22555153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (22620683) 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, 124199 + ... + 124380.

It is an arithmetic number, because the mean of its divisors is an integer number (3480120).

Almost surely, 2^22620689 is an apocalyptic number.

It is an amenable number.

22620689 is a deficient number, since it is larger than the sum of its proper divisors (5220271).

22620689 is a wasteful number, since it uses less digits than its factorization.

22620689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248599.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 22620689 is about 4756.1212137623. The cubic root of 22620689 is about 282.8146763708.

The spelling of 22620689 in words is "twenty-two million, six hundred twenty thousand, six hundred eighty-nine".