868197059 has 2 divisors, whose sum is σ = 868197060. Its totient is φ = 868197058.

The previous prime is 868197053. The next prime is 868197061. The reversal of 868197059 is 950791868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868197059 - 2²⁴ = 851419843 is a prime.

It is a super-2 number, since 2×868197059² = 1507532266512498962, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 868197061, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 868197059.

It is not a weakly prime, because it can be changed into another prime (868197053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434098529 + 434098530.

It is an arithmetic number, because the mean of its divisors is an integer number (434098530).

Almost surely, 2^868197059 is an apocalyptic number.

868197059 is a deficient number, since it is larger than the sum of its proper divisors (1).

868197059 is an equidigital number, since it uses as much as digits as its factorization.

868197059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 868197059 is about 29465.1838446666. The cubic root of 868197059 is about 953.9803665675.

The spelling of 868197059 in words is "eight hundred sixty-eight million, one hundred ninety-seven thousand, fifty-nine".