9506721 has 8 divisors (see below), whose sum is σ = 14486464. Its totient is φ = 5432400.

The previous prime is 9506681. The next prime is 9506747. The reversal of 9506721 is 1276059.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9506721 - 2⁶ = 9506657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9506921) 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, 226330 + ... + 226371.

It is an arithmetic number, because the mean of its divisors is an integer number (1810808).

Almost surely, 2^9506721 is an apocalyptic number.

It is an amenable number.

9506721 is a deficient number, since it is larger than the sum of its proper divisors (4979743).

9506721 is a wasteful number, since it uses less digits than its factorization.

9506721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452711.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 9506721 is about 3083.2970988862. The cubic root of 9506721 is about 211.8411130009.

The spelling of 9506721 in words is "nine million, five hundred six thousand, seven hundred twenty-one".