2684239479 has 12 divisors (see below), whose sum is σ = 4020836456. Its totient is φ = 1789492824.

The previous prime is 2684239469. The next prime is 2684239483. The reversal of 2684239479 is 9749324862.

2684239479 is a `hidden beast` number, since 2 + 68 + 423 + 94 + 79 = 666.

It is not a de Polignac number, because 2684239479 - 2¹³ = 2684231287 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 (2684239409) 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, 5522884 + ... + 5523369.

Almost surely, 2^2684239479 is an apocalyptic number.

2684239479 is a deficient number, since it is larger than the sum of its proper divisors (1336596977).

2684239479 is an equidigital number, since it uses as much as digits as its factorization.

2684239479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11046268 (or 11046256 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 54.

The square root of 2684239479 is about 51809.6465824657. The cubic root of 2684239479 is about 1389.7619589612.

The spelling of 2684239479 in words is "two billion, six hundred eighty-four million, two hundred thirty-nine thousand, four hundred seventy-nine".