8397158 has 24 divisors (see below), whose sum is σ = 15825936. Its totient is φ = 3270960.

The previous prime is 8397157. The next prime is 8397197. The reversal of 8397158 is 8517938.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8397157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 785 + ... + 4172.

It is an arithmetic number, because the mean of its divisors is an integer number (659414).

Almost surely, 2^8397158 is an apocalyptic number.

8397158 is a deficient number, since it is larger than the sum of its proper divisors (7428778).

8397158 is a wasteful number, since it uses less digits than its factorization.

8397158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4988 (or 4977 counting only the distinct ones).

The product of its digits is 60480, while the sum is 41.

The square root of 8397158 is about 2897.7850161805. The cubic root of 8397158 is about 203.2563433925.

It can be divided in two parts, 839 and 7158, that added together give a palindrome (7997).

The spelling of 8397158 in words is "eight million, three hundred ninety-seven thousand, one hundred fifty-eight".