8397145 has 16 divisors (see below), whose sum is σ = 10693440. Its totient is φ = 6312384.

The previous prime is 8397131. The next prime is 8397149. The reversal of 8397145 is 5417938.

It is a cyclic number.

It is not a de Polignac number, because 8397145 - 2⁷ = 8397017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8397149) 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 15 ways as a sum of consecutive naturals, for example, 14634 + ... + 15196.

It is an arithmetic number, because the mean of its divisors is an integer number (668340).

Almost surely, 2^8397145 is an apocalyptic number.

It is an amenable number.

8397145 is a deficient number, since it is larger than the sum of its proper divisors (2296295).

8397145 is a wasteful number, since it uses less digits than its factorization.

8397145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744.

The product of its digits is 30240, while the sum is 37.

The square root of 8397145 is about 2897.7827730870. The cubic root of 8397145 is about 203.2562385025.

The spelling of 8397145 in words is "eight million, three hundred ninety-seven thousand, one hundred forty-five".