9469721 has 4 divisors (see below), whose sum is σ = 9881472. Its totient is φ = 9057972.

The previous prime is 9469711. The next prime is 9469723. The reversal of 9469721 is 1279649.

9469721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9469721 - 2¹⁴ = 9453337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9469723) 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, 205841 + ... + 205886.

It is an arithmetic number, because the mean of its divisors is an integer number (2470368).

Almost surely, 2^9469721 is an apocalyptic number.

It is an amenable number.

9469721 is a deficient number, since it is larger than the sum of its proper divisors (411751).

9469721 is a wasteful number, since it uses less digits than its factorization.

9469721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411750.

The product of its digits is 27216, while the sum is 38.

The square root of 9469721 is about 3077.2911789429. The cubic root of 9469721 is about 211.5659283241.

The spelling of 9469721 in words is "nine million, four hundred sixty-nine thousand, seven hundred twenty-one".