2389975993 has 4 divisors (see below), whose sum is σ = 2390179108. Its totient is φ = 2389772880.

The previous prime is 2389975949. The next prime is 2389975997. The reversal of 2389975993 is 3995799832.

2389975993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1469035584 + 920940409 = 38328^2 + 30347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2389975993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2389975997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82746 + ... + 107827.

It is an arithmetic number, because the mean of its divisors is an integer number (597544777).

Almost surely, 2^2389975993 is an apocalyptic number.

It is an amenable number.

2389975993 is a deficient number, since it is larger than the sum of its proper divisors (203115).

2389975993 is a wasteful number, since it uses less digits than its factorization.

2389975993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203114.

The product of its digits is 33067440, while the sum is 64.

The square root of 2389975993 is about 48887.3807132270. The cubic root of 2389975993 is about 1336.9992988612. Note that the first 3 decimals are identical.

The spelling of 2389975993 in words is "two billion, three hundred eighty-nine million, nine hundred seventy-five thousand, nine hundred ninety-three".