8266457 has 2 divisors, whose sum is σ = 8266458. Its totient is φ = 8266456.

The previous prime is 8266439. The next prime is 8266477. The reversal of 8266457 is 7546628.

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., 6405961 + 1860496 = 2531^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 8266457 - 2¹⁶ = 8200921 is a prime.

It is a super-2 number, since 2×8266457² = 136668622665698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8266457.

It is not a weakly prime, because it can be changed into another prime (8266417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4133228 + 4133229.

It is an arithmetic number, because the mean of its divisors is an integer number (4133229).

Almost surely, 2^8266457 is an apocalyptic number.

It is an amenable number.

8266457 is a deficient number, since it is larger than the sum of its proper divisors (1).

8266457 is an equidigital number, since it uses as much as digits as its factorization.

8266457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 38.

The square root of 8266457 is about 2875.1446920112. The cubic root of 8266457 is about 202.1962687356.

The spelling of 8266457 in words is "eight million, two hundred sixty-six thousand, four hundred fifty-seven".