3112639 has 2 divisors, whose sum is σ = 3112640. Its totient is φ = 3112638.

The previous prime is 3112621. The next prime is 3112661. The reversal of 3112639 is 9362113.

It is a weak prime.

It is an emirp because it is prime and its reverse (9362113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3112639 - 2⁹ = 3112127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3112609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556319 + 1556320.

It is an arithmetic number, because the mean of its divisors is an integer number (1556320).

Almost surely, 2^3112639 is an apocalyptic number.

3112639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112639 is an equidigital number, since it uses as much as digits as its factorization.

3112639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 25.

The square root of 3112639 is about 1764.2672700019. The cubic root of 3112639 is about 146.0078653422.

The spelling of 3112639 in words is "three million, one hundred twelve thousand, six hundred thirty-nine".