9938629 has 4 divisors (see below), whose sum is σ = 9951084. Its totient is φ = 9926176.

The previous prime is 9938623. The next prime is 9938641. The reversal of 9938629 is 9268399.

It is a happy number.

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 8988004 + 950625 = 2998^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 9938629 - 2⁵ = 9938597 is a prime.

It is a Duffinian number.

9938629 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938623) 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, 4942 + ... + 6655.

It is an arithmetic number, because the mean of its divisors is an integer number (2487771).

Almost surely, 2^9938629 is an apocalyptic number.

It is an amenable number.

9938629 is a deficient number, since it is larger than the sum of its proper divisors (12455).

9938629 is a wasteful number, since it uses less digits than its factorization.

9938629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12454.

The product of its digits is 209952, while the sum is 46.

The square root of 9938629 is about 3152.5591191919. The cubic root of 9938629 is about 215.0018316051.

The spelling of 9938629 in words is "nine million, nine hundred thirty-eight thousand, six hundred twenty-nine".