3109306 has 4 divisors (see below), whose sum is σ = 4663962. Its totient is φ = 1554652.

The previous prime is 3109297. The next prime is 3109307. The reversal of 3109306 is 6039013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6039013 = 41 ⋅147293.

It can be written as a sum of positive squares in only one way, i.e., 1798281 + 1311025 = 1341^2 + 1145^2 .

It is not an unprimeable number, because it can be changed into a prime (3109307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 777325 + ... + 777328.

Almost surely, 2^3109306 is an apocalyptic number.

3109306 is a deficient number, since it is larger than the sum of its proper divisors (1554656).

3109306 is a wasteful number, since it uses less digits than its factorization.

3109306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1554655.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 3109306 is about 1763.3224322284. The cubic root of 3109306 is about 145.9557318720.

The spelling of 3109306 in words is "three million, one hundred nine thousand, three hundred six".