3112706639 has 4 divisors (see below), whose sum is σ = 3557379024. Its totient is φ = 2668034256.

The previous prime is 3112706629. The next prime is 3112706657. The reversal of 3112706639 is 9366072113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3112706639 - 2¹² = 3112702543 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 (3112706609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222336182 + ... + 222336195.

It is an arithmetic number, because the mean of its divisors is an integer number (889344756).

Almost surely, 2^3112706639 is an apocalyptic number.

3112706639 is a deficient number, since it is larger than the sum of its proper divisors (444672385).

3112706639 is an equidigital number, since it uses as much as digits as its factorization.

3112706639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444672384.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 3112706639 is about 55791.6359233174. The cubic root of 3112706639 is about 1460.0892293936.

The spelling of 3112706639 in words is "three billion, one hundred twelve million, seven hundred six thousand, six hundred thirty-nine".