8243693 has 2 divisors, whose sum is σ = 8243694. Its totient is φ = 8243692.

The previous prime is 8243687. The next prime is 8243707. The reversal of 8243693 is 3963428.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7856809 + 386884 = 2803^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 8243693 - 2¹⁴ = 8227309 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8⁵ + 2¹⁷ + 4⁷ + 3¹³ + 6⁸ + 9⁴ + 3¹⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8243603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4121846 + 4121847.

It is an arithmetic number, because the mean of its divisors is an integer number (4121847).

Almost surely, 2^8243693 is an apocalyptic number.

It is an amenable number.

8243693 is a deficient number, since it is larger than the sum of its proper divisors (1).

8243693 is an equidigital number, since it uses as much as digits as its factorization.

8243693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 8243693 is about 2871.1832055792. The cubic root of 8243693 is about 202.0104967914.

The spelling of 8243693 in words is "eight million, two hundred forty-three thousand, six hundred ninety-three".