9746521 has 2 divisors, whose sum is σ = 9746522. Its totient is φ = 9746520.

The previous prime is 9746501. The next prime is 9746533. The reversal of 9746521 is 1256479.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6375625 + 3370896 = 2525^2 + 1836^2 .

It is a cyclic number.

It is not a de Polignac number, because 9746521 - 2⁵ = 9746489 is a prime.

9746521 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9746501) 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 as a sum of consecutive naturals, namely, 4873260 + 4873261.

It is an arithmetic number, because the mean of its divisors is an integer number (4873261).

Almost surely, 2^9746521 is an apocalyptic number.

It is an amenable number.

9746521 is a deficient number, since it is larger than the sum of its proper divisors (1).

9746521 is an equidigital number, since it uses as much as digits as its factorization.

9746521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 34.

The square root of 9746521 is about 3121.9418636483. The cubic root of 9746521 is about 213.6075215244.

The spelling of 9746521 in words is "nine million, seven hundred forty-six thousand, five hundred twenty-one".