2147823839 has 8 divisors (see below), whose sum is σ = 2539299360. Its totient is φ = 1777509216.

The previous prime is 2147823803. The next prime is 2147823863. The reversal of 2147823839 is 9383287412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2147823839 - 2¹⁶ = 2147758303 is a prime.

It is a super-2 number, since 2×2147823839² = 9226294486753395842, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2147823793 and 2147823802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147823869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5290004 + ... + 5290409.

It is an arithmetic number, because the mean of its divisors is an integer number (317412420).

Almost surely, 2^2147823839 is an apocalyptic number.

2147823839 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

2147823839 is a deficient number, since it is larger than the sum of its proper divisors (391475521).

2147823839 is a wasteful number, since it uses less digits than its factorization.

2147823839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10580449.

The product of its digits is 580608, while the sum is 47.

The square root of 2147823839 is about 46344.6203889944. The cubic root of 2147823839 is about 1290.2272778244.

The spelling of 2147823839 in words is "two billion, one hundred forty-seven million, eight hundred twenty-three thousand, eight hundred thirty-nine".