22011689 has 4 divisors (see below), whose sum is σ = 25156224. Its totient is φ = 18867156.

The previous prime is 22011677. The next prime is 22011701. The reversal of 22011689 is 98611022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (22011677) and next prime (22011701).

It is not a de Polignac number, because 22011689 - 2⁴ = 22011673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22011659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1572257 + ... + 1572270.

It is an arithmetic number, because the mean of its divisors is an integer number (6289056).

Almost surely, 2^22011689 is an apocalyptic number.

It is an amenable number.

22011689 is a deficient number, since it is larger than the sum of its proper divisors (3144535).

22011689 is an equidigital number, since it uses as much as digits as its factorization.

22011689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3144534.

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

The square root of 22011689 is about 4691.6616459417. The cubic root of 22011689 is about 280.2535500939.

The spelling of 22011689 in words is "twenty-two million, eleven thousand, six hundred eighty-nine".