9999238 has 8 divisors (see below), whose sum is σ = 15012288. Its totient is φ = 4995144.

The previous prime is 9999233. The next prime is 9999271. The reversal of 9999238 is 8329999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 9999191 and 9999200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9999233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3120 + ... + 5452.

It is an arithmetic number, because the mean of its divisors is an integer number (1876536).

Almost surely, 2^9999238 is an apocalyptic number.

9999238 is a deficient number, since it is larger than the sum of its proper divisors (5013050).

9999238 is a wasteful number, since it uses less digits than its factorization.

9999238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478.

The product of its digits is 314928, while the sum is 49.

The square root of 9999238 is about 3162.1571750942. The cubic root of 9999238 is about 215.4379966001.

The spelling of 9999238 in words is "nine million, nine hundred ninety-nine thousand, two hundred thirty-eight".