9704021 has 2 divisors, whose sum is σ = 9704022. Its totient is φ = 9704020.

The previous prime is 9703997. The next prime is 9704029. The reversal of 9704021 is 1204079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9523396 + 180625 = 3086^2 + 425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9704021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9704029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4852010 + 4852011.

It is an arithmetic number, because the mean of its divisors is an integer number (4852011).

Almost surely, 2^9704021 is an apocalyptic number.

It is an amenable number.

9704021 is a deficient number, since it is larger than the sum of its proper divisors (1).

9704021 is an equidigital number, since it uses as much as digits as its factorization.

9704021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 9704021 is about 3115.1277662401. The cubic root of 9704021 is about 213.2965884522.

The spelling of 9704021 in words is "nine million, seven hundred four thousand, twenty-one".