3147389 has 16 divisors (see below), whose sum is σ = 3808512. Its totient is φ = 2542848.

The previous prime is 3147349. The next prime is 3147421. The reversal of 3147389 is 9837413.

It is not a de Polignac number, because 3147389 - 2²⁰ = 2098813 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3147349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18107 + ... + 18279.

It is an arithmetic number, because the mean of its divisors is an integer number (238032).

Almost surely, 2^3147389 is an apocalyptic number.

It is an amenable number.

3147389 is a deficient number, since it is larger than the sum of its proper divisors (661123).

3147389 is a wasteful number, since it uses less digits than its factorization.

3147389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

The product of its digits is 18144, while the sum is 35.

The square root of 3147389 is about 1774.0882165214. The cubic root of 3147389 is about 146.5492074951.

The spelling of 3147389 in words is "three million, one hundred forty-seven thousand, three hundred eighty-nine".