8071897 has 2 divisors, whose sum is σ = 8071898. Its totient is φ = 8071896.

The previous prime is 8071859. The next prime is 8071901. The reversal of 8071897 is 7981708.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6170256 + 1901641 = 2484^2 + 1379^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8071897 is a prime.

8071897 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8071807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4035948 + 4035949.

It is an arithmetic number, because the mean of its divisors is an integer number (4035949).

Almost surely, 2^8071897 is an apocalyptic number.

It is an amenable number.

8071897 is a deficient number, since it is larger than the sum of its proper divisors (1).

8071897 is an equidigital number, since it uses as much as digits as its factorization.

8071897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 40.

The square root of 8071897 is about 2841.1084104624. The cubic root of 8071897 is about 200.5973557211.

It can be divided in two parts, 807 and 1897, that added together give a square (2704 = 52²).

The spelling of 8071897 in words is "eight million, seventy-one thousand, eight hundred ninety-seven".