3109387 has 2 divisors, whose sum is σ = 3109388. Its totient is φ = 3109386.

The previous prime is 3109367. The next prime is 3109391. The reversal of 3109387 is 7839013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3109387 - 2⁷ = 3109259 is a prime.

It is not a weakly prime, because it can be changed into another prime (3109307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1554693 + 1554694.

It is an arithmetic number, because the mean of its divisors is an integer number (1554694).

Almost surely, 2^3109387 is an apocalyptic number.

3109387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3109387 is an equidigital number, since it uses as much as digits as its factorization.

3109387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 3109387 is about 1763.3454000847. The cubic root of 3109387 is about 145.9569992836.

The spelling of 3109387 in words is "three million, one hundred nine thousand, three hundred eighty-seven".