2312639 has 8 divisors (see below), whose sum is σ = 2683008. Its totient is φ = 1952280.

The previous prime is 2312633. The next prime is 2312641. The reversal of 2312639 is 9362132.

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

It is a cyclic number.

It is not a de Polignac number, because 2312639 - 2¹² = 2308543 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1997 + ... + 2934.

It is an arithmetic number, because the mean of its divisors is an integer number (335376).

2^2312639 is an apocalyptic number.

2312639 is a deficient number, since it is larger than the sum of its proper divisors (370369).

2312639 is an equidigital number, since it uses as much as digits as its factorization.

2312639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005.

The product of its digits is 1944, while the sum is 26.

The square root of 2312639 is about 1520.7363348063. The cubic root of 2312639 is about 132.2419613159.

The spelling of 2312639 in words is "two million, three hundred twelve thousand, six hundred thirty-nine".