9704921 has 4 divisors (see below), whose sum is σ = 9769344. Its totient is φ = 9640500.

The previous prime is 9704911. The next prime is 9704923. The reversal of 9704921 is 1294079.

9704921 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1294079 = 229 ⋅5651.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9704921 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 (9704923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31985 + ... + 32286.

It is an arithmetic number, because the mean of its divisors is an integer number (2442336).

Almost surely, 2^9704921 is an apocalyptic number.

It is an amenable number.

9704921 is a deficient number, since it is larger than the sum of its proper divisors (64423).

9704921 is a wasteful number, since it uses less digits than its factorization.

9704921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64422.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 9704921 is about 3115.2722192451. The cubic root of 9704921 is about 213.3031823166.

The spelling of 9704921 in words is "nine million, seven hundred four thousand, nine hundred twenty-one".