2343989 has 2 divisors, whose sum is σ = 2343990. Its totient is φ = 2343988.

The previous prime is 2343967. The next prime is 2343997. The reversal of 2343989 is 9893432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1276900 + 1067089 = 1130^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 2343989 - 2¹² = 2339893 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2343949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1171994 + 1171995.

It is an arithmetic number, because the mean of its divisors is an integer number (1171995).

2^2343989 is an apocalyptic number.

It is an amenable number.

2343989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2343989 is an equidigital number, since it uses as much as digits as its factorization.

2343989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The square root of 2343989 is about 1531.0091443228. The cubic root of 2343989 is about 132.8368361125.

The spelling of 2343989 in words is "two million, three hundred forty-three thousand, nine hundred eighty-nine".