8507897 has 2 divisors, whose sum is σ = 8507898. Its totient is φ = 8507896.

The previous prime is 8507887. The next prime is 8507899. The reversal of 8507897 is 7987058.

8507897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4280761 + 4227136 = 2069^2 + 2056^2 .

It is a cyclic number.

It is not a de Polignac number, because 8507897 - 2⁴ = 8507881 is a prime.

It is a super-2 number, since 2×8507897² = 144768622725218, which contains 22 as substring.

Together with 8507899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8507899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4253948 + 4253949.

It is an arithmetic number, because the mean of its divisors is an integer number (4253949).

Almost surely, 2^8507897 is an apocalyptic number.

It is an amenable number.

8507897 is a deficient number, since it is larger than the sum of its proper divisors (1).

8507897 is an equidigital number, since it uses as much as digits as its factorization.

8507897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141120, while the sum is 44.

The square root of 8507897 is about 2916.8299573338. The cubic root of 8507897 is about 204.1459371614.

The spelling of 8507897 in words is "eight million, five hundred seven thousand, eight hundred ninety-seven".