9065621 has 4 divisors (see below), whose sum is σ = 9073644. Its totient is φ = 9057600.

The previous prime is 9065591. The next prime is 9065627. The reversal of 9065621 is 1265609.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5340721 + 3724900 = 2311^2 + 1930^2 .

It is a cyclic number.

It is not a de Polignac number, because 9065621 - 2¹⁰ = 9064597 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 (9065627) 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, 1970 + ... + 4691.

It is an arithmetic number, because the mean of its divisors is an integer number (2268411).

Almost surely, 2^9065621 is an apocalyptic number.

It is an amenable number.

9065621 is a deficient number, since it is larger than the sum of its proper divisors (8023).

9065621 is a wasteful number, since it uses less digits than its factorization.

9065621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8022.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 9065621 is about 3010.9169699611. The cubic root of 9065621 is about 208.5127036907.

The spelling of 9065621 in words is "nine million, sixty-five thousand, six hundred twenty-one".