3112643 has 4 divisors (see below), whose sum is σ = 3137280. Its totient is φ = 3088008.

The previous prime is 3112639. The next prime is 3112661. The reversal of 3112643 is 3462113.

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 3112643 - 2² = 3112639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112693) 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, 12128 + ... + 12381.

It is an arithmetic number, because the mean of its divisors is an integer number (784320).

Almost surely, 2^3112643 is an apocalyptic number.

3112643 is a deficient number, since it is larger than the sum of its proper divisors (24637).

3112643 is a wasteful number, since it uses less digits than its factorization.

3112643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24636.

The product of its digits is 432, while the sum is 20.

The square root of 3112643 is about 1764.2684036166. The cubic root of 3112643 is about 146.0079278863.

Adding to 3112643 its reverse (3462113), we get a palindrome (6574756).

The spelling of 3112643 in words is "three million, one hundred twelve thousand, six hundred forty-three".