8166393 has 8 divisors (see below), whose sum is σ = 12098400. Its totient is φ = 5444244.

The previous prime is 8166383. The next prime is 8166401. The reversal of 8166393 is 3936618.

It is a happy number.

8166393 is a `hidden beast` number, since 8 + 16 + 639 + 3 = 666.

It is not a de Polignac number, because 8166393 - 2⁹ = 8165881 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8166383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151203 + ... + 151256.

It is an arithmetic number, because the mean of its divisors is an integer number (1512300).

Almost surely, 2^8166393 is an apocalyptic number.

It is an amenable number.

8166393 is a deficient number, since it is larger than the sum of its proper divisors (3932007).

8166393 is a wasteful number, since it uses less digits than its factorization.

8166393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302468 (or 302462 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 8166393 is about 2857.6901511536. The cubic root of 8166393 is about 201.3771044865.

The spelling of 8166393 in words is "eight million, one hundred sixty-six thousand, three hundred ninety-three".