8346521 has 2 divisors, whose sum is σ = 8346522. Its totient is φ = 8346520.

The previous prime is 8346517. The next prime is 8346551. The reversal of 8346521 is 1256438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6553600 + 1792921 = 2560^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 8346521 - 2² = 8346517 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8346551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4173260 + 4173261.

It is an arithmetic number, because the mean of its divisors is an integer number (4173261).

Almost surely, 2^8346521 is an apocalyptic number.

It is an amenable number.

8346521 is a deficient number, since it is larger than the sum of its proper divisors (1).

8346521 is an equidigital number, since it uses as much as digits as its factorization.

8346521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 8346521 is about 2889.0346138459. The cubic root of 8346521 is about 202.8469568902.

The spelling of 8346521 in words is "eight million, three hundred forty-six thousand, five hundred twenty-one".