9939045 has 16 divisors (see below), whose sum is σ = 16012800. Its totient is φ = 5264064.

The previous prime is 9939031. The next prime is 9939047. The reversal of 9939045 is 5409399.

It is a happy number.

9939045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9939045 - 2⁴ = 9939029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9938994 and 9939012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9939047) 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, 12 + ... + 4458.

It is an arithmetic number, because the mean of its divisors is an integer number (1000800).

Almost surely, 2^9939045 is an apocalyptic number.

It is an amenable number.

9939045 is a deficient number, since it is larger than the sum of its proper divisors (6073755).

9939045 is a wasteful number, since it uses less digits than its factorization.

9939045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4604.

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 9939045 is about 3152.6250966457. The cubic root of 9939045 is about 215.0048313319.

The spelling of 9939045 in words is "nine million, nine hundred thirty-nine thousand, forty-five".