9938331413 has 4 divisors (see below), whose sum is σ = 9940315788. Its totient is φ = 9936347040.

The previous prime is 9938331409. The next prime is 9938331419. The reversal of 9938331413 is 3141338399.

It is a happy number.

9938331413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3141338399 = 8053 ⋅390083.

It can be written as a sum of positive squares in 2 ways, for example, as 4627128529 + 5311202884 = 68023^2 + 72878^2 .

It is a cyclic number.

It is not a de Polignac number, because 9938331413 - 2² = 9938331409 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 (9938331419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 984656 + ... + 994697.

It is an arithmetic number, because the mean of its divisors is an integer number (2485078947).

Almost surely, 2^9938331413 is an apocalyptic number.

It is an amenable number.

9938331413 is a deficient number, since it is larger than the sum of its proper divisors (1984375).

9938331413 is a wasteful number, since it uses less digits than its factorization.

9938331413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1984374.

The product of its digits is 209952, while the sum is 44.

The square root of 9938331413 is about 99691.1802167072. The cubic root of 9938331413 is about 2149.9968568910.

The spelling of 9938331413 in words is "nine billion, nine hundred thirty-eight million, three hundred thirty-one thousand, four hundred thirteen".