2301989 has 2 divisors, whose sum is σ = 2301990. Its totient is φ = 2301988.

The previous prime is 2301977. The next prime is 2301997. The reversal of 2301989 is 9891032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1399489 + 902500 = 1183^2 + 950^2 .

It is a cyclic number.

It is not a de Polignac number, because 2301989 - 2⁴ = 2301973 is a prime.

It is a super-2 number, since 2×2301989² = 10598306712242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2301389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1150994 + 1150995.

It is an arithmetic number, because the mean of its divisors is an integer number (1150995).

2^2301989 is an apocalyptic number.

It is an amenable number.

2301989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2301989 is an equidigital number, since it uses as much as digits as its factorization.

2301989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 2301989 is about 1517.2307009812. The cubic root of 2301989 is about 132.0386518276.

The spelling of 2301989 in words is "two million, three hundred one thousand, nine hundred eighty-nine".