2389969 has 2 divisors, whose sum is σ = 2389970. Its totient is φ = 2389968.

The previous prime is 2389967. The next prime is 2389973. The reversal of 2389969 is 9699832.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 731025 = 1288^2 + 855^2 .

It is a cyclic number.

It is not a de Polignac number, because 2389969 - 2¹ = 2389967 is a prime.

It is a super-2 number, since 2×2389969² = 11423903641922, which contains 22 as substring.

Together with 2389967, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2389967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1194984 + 1194985.

It is an arithmetic number, because the mean of its divisors is an integer number (1194985).

2^2389969 is an apocalyptic number.

It is an amenable number.

2389969 is a deficient number, since it is larger than the sum of its proper divisors (1).

2389969 is an equidigital number, since it uses as much as digits as its factorization.

2389969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 46.

The square root of 2389969 is about 1545.9524572250. The cubic root of 2389969 is about 133.6997994853.

The spelling of 2389969 in words is "two million, three hundred eighty-nine thousand, nine hundred sixty-nine".