9749389 has 8 divisors (see below), whose sum is σ = 10783640. Its totient is φ = 8755776.

The previous prime is 9749359. The next prime is 9749393. The reversal of 9749389 is 9839479.

9749389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2832489 + 6916900 = 1683^2 + 2630^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 9749389 - 2⁵ = 9749357 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 (9749329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9654 + ... + 10615.

It is an arithmetic number, because the mean of its divisors is an integer number (1347955).

Almost surely, 2^9749389 is an apocalyptic number.

It is an amenable number.

9749389 is a deficient number, since it is larger than the sum of its proper divisors (1034251).

9749389 is a wasteful number, since it uses less digits than its factorization.

9749389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20319.

The product of its digits is 489888, while the sum is 49.

The square root of 9749389 is about 3122.4011593644. The cubic root of 9749389 is about 213.6284714371.

The spelling of 9749389 in words is "nine million, seven hundred forty-nine thousand, three hundred eighty-nine".