9724665 has 16 divisors (see below), whose sum is σ = 15922368. Its totient is φ = 5065536.

The previous prime is 9724661. The next prime is 9724703. The reversal of 9724665 is 5664279.

9724665 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9724665 - 2² = 9724661 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9724661) 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, 6894 + ... + 8183.

It is an arithmetic number, because the mean of its divisors is an integer number (995148).

Almost surely, 2^9724665 is an apocalyptic number.

It is an amenable number.

9724665 is a deficient number, since it is larger than the sum of its proper divisors (6197703).

9724665 is a wasteful number, since it uses less digits than its factorization.

9724665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15128.

The product of its digits is 90720, while the sum is 39.

The square root of 9724665 is about 3118.4395136029. The cubic root of 9724665 is about 213.4477345934.

The spelling of 9724665 in words is "nine million, seven hundred twenty-four thousand, six hundred sixty-five".