9682921 has 4 divisors (see below), whose sum is σ = 9695700. Its totient is φ = 9670144.

The previous prime is 9682919. The next prime is 9682961. The reversal of 9682921 is 1292869.

9682921 is digitally balanced in base 3, 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 an emirpimes, since its reverse is a distinct semiprime: 1292869 = 137 ⋅9437.

It can be written as a sum of positive squares in 2 ways, for example, as 4575321 + 5107600 = 2139^2 + 2260^2 .

It is a cyclic number.

It is not a de Polignac number, because 9682921 - 2¹ = 9682919 is a prime.

It is a Duffinian number.

9682921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9682901) 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, 5176 + ... + 6793.

It is an arithmetic number, because the mean of its divisors is an integer number (2423925).

Almost surely, 2^9682921 is an apocalyptic number.

It is an amenable number.

9682921 is a deficient number, since it is larger than the sum of its proper divisors (12779).

9682921 is a wasteful number, since it uses less digits than its factorization.

9682921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12778.

The product of its digits is 15552, while the sum is 37.

The square root of 9682921 is about 3111.7392242924. The cubic root of 9682921 is about 213.1418820028.

The spelling of 9682921 in words is "nine million, six hundred eighty-two thousand, nine hundred twenty-one".