2379821993 has 8 divisors (see below), whose sum is σ = 2523102120. Its totient is φ = 2236907520.

The previous prime is 2379821987. The next prime is 2379822013. The reversal of 2379821993 is 3991289732.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 223891369 + 2155930624 = 14963^2 + 46432^2 .

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 2379821993 - 2⁶ = 2379821929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2379821903) 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 7 ways as a sum of consecutive naturals, for example, 77948 + ... + 104093.

It is an arithmetic number, because the mean of its divisors is an integer number (315387765).

Almost surely, 2^2379821993 is an apocalyptic number.

It is an amenable number.

2379821993 is a deficient number, since it is larger than the sum of its proper divisors (143280127).

2379821993 is a wasteful number, since it uses less digits than its factorization.

2379821993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182827.

The product of its digits is 1469664, while the sum is 53.

The square root of 2379821993 is about 48783.4192426074. The cubic root of 2379821993 is about 1335.1031623160.

The spelling of 2379821993 in words is "two billion, three hundred seventy-nine million, eight hundred twenty-one thousand, nine hundred ninety-three".