9147389 has 4 divisors (see below), whose sum is σ = 9231420. Its totient is φ = 9063360.

The previous prime is 9147373. The next prime is 9147421. The reversal of 9147389 is 9837419.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9837419 = 1117 ⋅8807.

It can be written as a sum of positive squares in 2 ways, for example, as 8008900 + 1138489 = 2830^2 + 1067^2 .

It is a cyclic number.

It is not a de Polignac number, because 9147389 - 2⁴ = 9147373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9147889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41852 + ... + 42069.

It is an arithmetic number, because the mean of its divisors is an integer number (2307855).

Almost surely, 2^9147389 is an apocalyptic number.

It is an amenable number.

9147389 is a deficient number, since it is larger than the sum of its proper divisors (84031).

9147389 is a wasteful number, since it uses less digits than its factorization.

9147389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84030.

The product of its digits is 54432, while the sum is 41.

The square root of 9147389 is about 3024.4650766706. The cubic root of 9147389 is about 209.1377265788.

The spelling of 9147389 in words is "nine million, one hundred forty-seven thousand, three hundred eighty-nine".