2939831389 has 8 divisors (see below), whose sum is σ = 3208338432. Its totient is φ = 2671532640.

The previous prime is 2939831387. The next prime is 2939831393. The reversal of 2939831389 is 9831389392.

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 2939831389 - 2¹ = 2939831387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2939831383) 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, 21789 + ... + 79714.

It is an arithmetic number, because the mean of its divisors is an integer number (401042304).

Almost surely, 2^2939831389 is an apocalyptic number.

It is an amenable number.

2939831389 is a deficient number, since it is larger than the sum of its proper divisors (268507043).

2939831389 is a wasteful number, since it uses less digits than its factorization.

2939831389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104147.

The product of its digits is 2519424, while the sum is 55.

The square root of 2939831389 is about 54220.2119970035. The cubic root of 2939831389 is about 1432.5423645245.

The spelling of 2939831389 in words is "two billion, nine hundred thirty-nine million, eight hundred thirty-one thousand, three hundred eighty-nine".