2312739 has 32 divisors (see below), whose sum is σ = 4032000. Its totient is φ = 1291680.

The previous prime is 2312711. The next prime is 2312747. The reversal of 2312739 is 9372132.

It is not a de Polignac number, because 2312739 - 2⁵ = 2312707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (2312749) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3562 + ... + 4160.

It is an arithmetic number, because the mean of its divisors is an integer number (126000).

2^2312739 is an apocalyptic number.

2312739 is a deficient number, since it is larger than the sum of its proper divisors (1719261).

2312739 is a wasteful number, since it uses less digits than its factorization.

2312739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 626 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 2312739 is about 1520.7692132602. The cubic root of 2312739 is about 132.2438673643.

The spelling of 2312739 in words is "two million, three hundred twelve thousand, seven hundred thirty-nine".