9938159 has 16 divisors (see below), whose sum is σ = 13044480. Its totient is φ = 7335360.

The previous prime is 9938153. The next prime is 9938179. The reversal of 9938159 is 9518399.

It is a cyclic number.

It is not a de Polignac number, because 9938159 - 2⁴ = 9938143 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9938153) 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, 1934 + ... + 4859.

It is an arithmetic number, because the mean of its divisors is an integer number (815280).

Almost surely, 2^9938159 is an apocalyptic number.

9938159 is a deficient number, since it is larger than the sum of its proper divisors (3106321).

9938159 is a wasteful number, since it uses less digits than its factorization.

9938159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6830.

The product of its digits is 87480, while the sum is 44.

The square root of 9938159 is about 3152.4845756958. The cubic root of 9938159 is about 214.9984423900.

It can be divided in two parts, 993815 and 9, that multiplied together give a triangular number (8944335 = T₄₂₂₉).

The spelling of 9938159 in words is "nine million, nine hundred thirty-eight thousand, one hundred fifty-nine".