9399689 has 4 divisors (see below), whose sum is σ = 10122756. Its totient is φ = 8676624.

The previous prime is 9399653. The next prime is 9399743. The reversal of 9399689 is 9869939.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 6451600 = 1717^2 + 2540^2 .

It is a cyclic number.

It is not a de Polignac number, because 9399689 - 2¹² = 9395593 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9399689.

It is not an unprimeable number, because it can be changed into a prime (9399989) 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 in 3 ways as a sum of consecutive naturals, for example, 361514 + ... + 361539.

It is an arithmetic number, because the mean of its divisors is an integer number (2530689).

Almost surely, 2^9399689 is an apocalyptic number.

It is an amenable number.

9399689 is a deficient number, since it is larger than the sum of its proper divisors (723067).

9399689 is a wasteful number, since it uses less digits than its factorization.

9399689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723066.

The product of its digits is 944784, while the sum is 53.

The square root of 9399689 is about 3065.8912244240. The cubic root of 9399689 is about 211.0431019365.

The spelling of 9399689 in words is "nine million, three hundred ninety-nine thousand, six hundred eighty-nine".