2172382839 has 12 divisors (see below), whose sum is σ = 3423148872. Its totient is φ = 1316595600.

The previous prime is 2172382829. The next prime is 2172382853. The reversal of 2172382839 is 9382832712.

It is not a de Polignac number, because 2172382839 - 2¹³ = 2172374647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2172382794 and 2172382803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2172382829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10971532 + ... + 10971729.

It is an arithmetic number, because the mean of its divisors is an integer number (285262406).

Almost surely, 2^2172382839 is an apocalyptic number.

2172382839 is a deficient number, since it is larger than the sum of its proper divisors (1250766033).

2172382839 is a wasteful number, since it uses less digits than its factorization.

2172382839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21943278 (or 21943275 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2172382839 is about 46608.8279084553. The cubic root of 2172382839 is about 1295.1262954796.

The spelling of 2172382839 in words is "two billion, one hundred seventy-two million, three hundred eighty-two thousand, eight hundred thirty-nine".