8215349 has 2 divisors, whose sum is σ = 8215350. Its totient is φ = 8215348.

The previous prime is 8215343. The next prime is 8215367. The reversal of 8215349 is 9435128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8162449 + 52900 = 2857^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 8215349 - 2²⁰ = 7166773 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8215343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4107674 + 4107675.

It is an arithmetic number, because the mean of its divisors is an integer number (4107675).

Almost surely, 2^8215349 is an apocalyptic number.

It is an amenable number.

8215349 is a deficient number, since it is larger than the sum of its proper divisors (1).

8215349 is an equidigital number, since it uses as much as digits as its factorization.

8215349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 32.

The square root of 8215349 is about 2866.2430113303. The cubic root of 8215349 is about 201.7787090744.

The spelling of 8215349 in words is "eight million, two hundred fifteen thousand, three hundred forty-nine".