8397859 has 2 divisors, whose sum is σ = 8397860. Its totient is φ = 8397858.

The previous prime is 8397841. The next prime is 8397863. The reversal of 8397859 is 9587938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8397859 - 2⁵ = 8397827 is a prime.

It is not a weakly prime, because it can be changed into another prime (8397839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4198929 + 4198930.

It is an arithmetic number, because the mean of its divisors is an integer number (4198930).

Almost surely, 2^8397859 is an apocalyptic number.

8397859 is a deficient number, since it is larger than the sum of its proper divisors (1).

8397859 is an equidigital number, since it uses as much as digits as its factorization.

8397859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 49.

The square root of 8397859 is about 2897.9059681087. The cubic root of 8397859 is about 203.2619992240.

The spelling of 8397859 in words is "eight million, three hundred ninety-seven thousand, eight hundred fifty-nine".