2385989 has 2 divisors, whose sum is σ = 2385990. Its totient is φ = 2385988.

The previous prime is 2385983. The next prime is 2385991. The reversal of 2385989 is 9895832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 708964 = 1295^2 + 842^2 .

It is a cyclic number.

It is not a de Polignac number, because 2385989 - 2¹² = 2381893 is a prime.

Together with 2385991, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2385983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1192994 + 1192995.

It is an arithmetic number, because the mean of its divisors is an integer number (1192995).

2^2385989 is an apocalyptic number.

It is an amenable number.

2385989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2385989 is an equidigital number, since it uses as much as digits as its factorization.

2385989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 2385989 is about 1544.6646885328. The cubic root of 2385989 is about 133.6255417778.

The spelling of 2385989 in words is "two million, three hundred eighty-five thousand, nine hundred eighty-nine".