2389917 has 8 divisors (see below), whose sum is σ = 3222720. Its totient is φ = 1575200.

The previous prime is 2389901. The next prime is 2389921. The reversal of 2389917 is 7199832.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2389917 - 2⁴ = 2389901 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4209 + ... + 4742.

It is an arithmetic number, because the mean of its divisors is an integer number (402840).

2^2389917 is an apocalyptic number.

It is an amenable number.

2389917 is a deficient number, since it is larger than the sum of its proper divisors (832803).

2389917 is an equidigital number, since it uses as much as digits as its factorization.

2389917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9043.

The product of its digits is 27216, while the sum is 39.

The square root of 2389917 is about 1545.9356390225. The cubic root of 2389917 is about 133.6988298158.

The spelling of 2389917 in words is "two million, three hundred eighty-nine thousand, nine hundred seventeen".