3109684 has 6 divisors (see below), whose sum is σ = 5441954. Its totient is φ = 1554840.

The previous prime is 3109681. The next prime is 3109693. The reversal of 3109684 is 4869013.

It can be written as a sum of positive squares in only one way, i.e., 2965284 + 144400 = 1722^2 + 380^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3109681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 388707 + ... + 388714.

Almost surely, 2^3109684 is an apocalyptic number.

It is an amenable number.

3109684 is a deficient number, since it is larger than the sum of its proper divisors (2332270).

3109684 is a wasteful number, since it uses less digits than its factorization.

3109684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777425 (or 777423 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 3109684 is about 1763.4296129985. The cubic root of 3109684 is about 145.9616462713.

The spelling of 3109684 in words is "three million, one hundred nine thousand, six hundred eighty-four".