9724235989 has 16 divisors (see below), whose sum is σ = 10720982272. Its totient is φ = 8763225408.

The previous prime is 9724235971. The next prime is 9724235999. The reversal of 9724235989 is 9895324279.

It is a cyclic number.

It is not a de Polignac number, because 9724235989 - 2¹⁵ = 9724203221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9724235999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2030692 + ... + 2035474.

It is an arithmetic number, because the mean of its divisors is an integer number (670061392).

Almost surely, 2^9724235989 is an apocalyptic number.

It is an amenable number.

9724235989 is a deficient number, since it is larger than the sum of its proper divisors (996746283).

9724235989 is a wasteful number, since it uses less digits than its factorization.

9724235989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8476.

The product of its digits is 9797760, while the sum is 58.

The square root of 9724235989 is about 98611.5408509572. The cubic root of 9724235989 is about 2134.4459574411.

The spelling of 9724235989 in words is "nine billion, seven hundred twenty-four million, two hundred thirty-five thousand, nine hundred eighty-nine".