2938879789 has 4 divisors (see below), whose sum is σ = 2951826624. Its totient is φ = 2925932956.

The previous prime is 2938879787. The next prime is 2938879813. The reversal of 2938879789 is 9879788392.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2938879789 - 2¹ = 2938879787 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 (2938879787) 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, 6473077 + ... + 6473530.

It is an arithmetic number, because the mean of its divisors is an integer number (737956656).

Almost surely, 2^2938879789 is an apocalyptic number.

It is an amenable number.

2938879789 is a deficient number, since it is larger than the sum of its proper divisors (12946835).

2938879789 is a wasteful number, since it uses less digits than its factorization.

2938879789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12946834.

The product of its digits is 109734912, while the sum is 70.

The square root of 2938879789 is about 54211.4359614279. The cubic root of 2938879789 is about 1432.3877803272.

The spelling of 2938879789 in words is "two billion, nine hundred thirty-eight million, eight hundred seventy-nine thousand, seven hundred eighty-nine".