9648581 has 4 divisors (see below), whose sum is σ = 9660000. Its totient is φ = 9637164.

The previous prime is 9648577. The next prime is 9648589. The reversal of 9648581 is 1858469.

9648581 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, and also an emirpimes, since its reverse is a distinct semiprime: 1858469 = 23 ⋅80803.

It is a cyclic number.

It is not a de Polignac number, because 9648581 - 2² = 9648577 is a prime.

It is a super-2 number, since 2×9648581² = 186190230627122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9648589) 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, 4331 + ... + 6168.

It is an arithmetic number, because the mean of its divisors is an integer number (2415000).

Almost surely, 2^9648581 is an apocalyptic number.

It is an amenable number.

9648581 is a deficient number, since it is larger than the sum of its proper divisors (11419).

9648581 is a wasteful number, since it uses less digits than its factorization.

9648581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11418.

The product of its digits is 69120, while the sum is 41.

The square root of 9648581 is about 3106.2165088738. The cubic root of 9648581 is about 212.8896178420.

The spelling of 9648581 in words is "nine million, six hundred forty-eight thousand, five hundred eighty-one".