3109389 has 8 divisors (see below), whose sum is σ = 4154112. Its totient is φ = 2068800.

The previous prime is 3109387. The next prime is 3109391. The reversal of 3109389 is 9839013.

It is an interprime number because it is at equal distance from previous prime (3109387) and next prime (3109391).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3109389 - 2¹ = 3109387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3109387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1989 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (519264).

Almost surely, 2^3109389 is an apocalyptic number.

It is an amenable number.

3109389 is a deficient number, since it is larger than the sum of its proper divisors (1044723).

3109389 is a wasteful number, since it uses less digits than its factorization.

3109389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 3109389 is about 1763.3459671885. The cubic root of 3109389 is about 145.9570305775.

The spelling of 3109389 in words is "three million, one hundred nine thousand, three hundred eighty-nine".