2022689 has 4 divisors (see below), whose sum is σ = 2110656. Its totient is φ = 1934724.

The previous prime is 2022661. The next prime is 2022701. The reversal of 2022689 is 9862202.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 2022689 - 2¹² = 2018593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2022619) 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, 43949 + ... + 43994.

It is an arithmetic number, because the mean of its divisors is an integer number (527664).

2^2022689 is an apocalyptic number.

It is an amenable number.

2022689 is a deficient number, since it is larger than the sum of its proper divisors (87967).

2022689 is an equidigital number, since it uses as much as digits as its factorization.

2022689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87966.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2022689 is about 1422.2127126418. The cubic root of 2022689 is about 126.4667537496.

The spelling of 2022689 in words is "two million, twenty-two thousand, six hundred eighty-nine".