2389916357 has 4 divisors (see below), whose sum is σ = 2390014956. Its totient is φ = 2389817760.

The previous prime is 2389916339. The next prime is 2389916371. The reversal of 2389916357 is 7536199832.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 199769956 + 2190146401 = 14134^2 + 46799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2389916357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2389916299 and 2389916308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389916317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15107 + ... + 70767.

It is an arithmetic number, because the mean of its divisors is an integer number (597503739).

Almost surely, 2^2389916357 is an apocalyptic number.

It is an amenable number.

2389916357 is a deficient number, since it is larger than the sum of its proper divisors (98599).

2389916357 is an equidigital number, since it uses as much as digits as its factorization.

2389916357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98598.

The product of its digits is 2449440, while the sum is 53.

The square root of 2389916357 is about 48886.7707769699. The cubic root of 2389916357 is about 1336.9881782539.

The spelling of 2389916357 in words is "two billion, three hundred eighty-nine million, nine hundred sixteen thousand, three hundred fifty-seven".