9958399 has 8 divisors (see below), whose sum is σ = 10928592. Its totient is φ = 8999040.

The previous prime is 9958363. The next prime is 9958453. The reversal of 9958399 is 9938599.

9958399 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 9958399 - 2⁷ = 9958271 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 (9958309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714 + ... + 4519.

It is an arithmetic number, because the mean of its divisors is an integer number (1366074).

Almost surely, 2^9958399 is an apocalyptic number.

9958399 is a deficient number, since it is larger than the sum of its proper divisors (970193).

9958399 is a wasteful number, since it uses less digits than its factorization.

9958399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5417.

The product of its digits is 787320, while the sum is 52.

The square root of 9958399 is about 3155.6931092868. The cubic root of 9958399 is about 215.1442983004.

The spelling of 9958399 in words is "nine million, nine hundred fifty-eight thousand, three hundred ninety-nine".