3106891 has 2 divisors, whose sum is σ = 3106892. Its totient is φ = 3106890.

The previous prime is 3106877. The next prime is 3106897. The reversal of 3106891 is 1986013.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3106891 - 2¹³ = 3098699 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3106897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1553445 + 1553446.

It is an arithmetic number, because the mean of its divisors is an integer number (1553446).

Almost surely, 2^3106891 is an apocalyptic number.

3106891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3106891 is an equidigital number, since it uses as much as digits as its factorization.

3106891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 3106891 is about 1762.6375123661. The cubic root of 3106891 is about 145.9179341137.

The spelling of 3106891 in words is "three million, one hundred six thousand, eight hundred ninety-one".