2022989 has 2 divisors, whose sum is σ = 2022990. Its totient is φ = 2022988.

The previous prime is 2022971. The next prime is 2022991. The reversal of 2022989 is 9892202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1729225 + 293764 = 1315^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022989 - 2¹⁶ = 1957453 is a prime.

Together with 2022991, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2022289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1011494 + 1011495.

It is an arithmetic number, because the mean of its divisors is an integer number (1011495).

2^2022989 is an apocalyptic number.

It is an amenable number.

2022989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2022989 is an equidigital number, since it uses as much as digits as its factorization.

2022989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 2022989 is about 1422.3181781866. The cubic root of 2022989 is about 126.4730058478.

The spelling of 2022989 in words is "two million, twenty-two thousand, nine hundred eighty-nine".