9724231 has 8 divisors (see below), whose sum is σ = 10758528. Its totient is φ = 8715000.

The previous prime is 9724223. The next prime is 9724241. The reversal of 9724231 is 1324279.

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 9724231 - 2³ = 9724223 is a prime.

It is a super-2 number, since 2×9724231² = 189121337082722, which contains 22 as substring.

9724231 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9724231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9724201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5445 + ... + 7006.

It is an arithmetic number, because the mean of its divisors is an integer number (1344816).

Almost surely, 2^9724231 is an apocalyptic number.

9724231 is a deficient number, since it is larger than the sum of its proper divisors (1034297).

9724231 is a wasteful number, since it uses less digits than its factorization.

9724231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533.

The product of its digits is 3024, while the sum is 28.

The square root of 9724231 is about 3118.3699267406. The cubic root of 9724231 is about 213.4445592417. Note that the first 3 decimals are identical.

The spelling of 9724231 in words is "nine million, seven hundred twenty-four thousand, two hundred thirty-one".