9995231 has 4 divisors (see below), whose sum is σ = 10012464. Its totient is φ = 9978000.

The previous prime is 9995213. The next prime is 9995239. The reversal of 9995231 is 1325999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1325999 = 277 ⋅4787.

It is a cyclic number.

It is not a de Polignac number, because 9995231 - 2¹⁰ = 9994207 is a prime.

It is a super-2 number, since 2×9995231² = 199809285486722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9995239) 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, 7715 + ... + 8916.

It is an arithmetic number, because the mean of its divisors is an integer number (2503116).

Almost surely, 2^9995231 is an apocalyptic number.

9995231 is a deficient number, since it is larger than the sum of its proper divisors (17233).

9995231 is a wasteful number, since it uses less digits than its factorization.

9995231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17232.

The product of its digits is 21870, while the sum is 38.

The square root of 9995231 is about 3161.5235251378. The cubic root of 9995231 is about 215.4092152273.

The spelling of 9995231 in words is "nine million, nine hundred ninety-five thousand, two hundred thirty-one".