8115897 has 4 divisors (see below), whose sum is σ = 10821200. Its totient is φ = 5410596.

The previous prime is 8115889. The next prime is 8115937. The reversal of 8115897 is 7985118.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 8115897 - 2³ = 8115889 is a prime.

It is a super-2 number, since 2×8115897² = 131735568229218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8115847) 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, 1352647 + ... + 1352652.

It is an arithmetic number, because the mean of its divisors is an integer number (2705300).

Almost surely, 2^8115897 is an apocalyptic number.

It is an amenable number.

8115897 is a deficient number, since it is larger than the sum of its proper divisors (2705303).

8115897 is a wasteful number, since it uses less digits than its factorization.

8115897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2705302.

The product of its digits is 20160, while the sum is 39.

The square root of 8115897 is about 2848.8413434237. The cubic root of 8115897 is about 200.9611815831.

The spelling of 8115897 in words is "eight million, one hundred fifteen thousand, eight hundred ninety-seven".