8505697 has 4 divisors (see below), whose sum is σ = 8517636. Its totient is φ = 8493760.

The previous prime is 8505691. The next prime is 8505709. The reversal of 8505697 is 7965058.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2954961 + 5550736 = 1719^2 + 2356^2 .

It is a cyclic number.

It is not a de Polignac number, because 8505697 - 2⁷ = 8505569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8505691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4828 + ... + 6349.

It is an arithmetic number, because the mean of its divisors is an integer number (2129409).

Almost surely, 2^8505697 is an apocalyptic number.

It is an amenable number.

8505697 is a deficient number, since it is larger than the sum of its proper divisors (11939).

8505697 is a wasteful number, since it uses less digits than its factorization.

8505697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11938.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 8505697 is about 2916.4528112075. The cubic root of 8505697 is about 204.1283394018.

The spelling of 8505697 in words is "eight million, five hundred five thousand, six hundred ninety-seven".