859717097 has 4 divisors (see below), whose sum is σ = 860055876. Its totient is φ = 859378320.

The previous prime is 859717063. The next prime is 859717121. The reversal of 859717097 is 790717958.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790717958 = 2 ⋅395358979.

It can be written as a sum of positive squares in 2 ways, for example, as 134815321 + 724901776 = 11611^2 + 26924^2 .

It is a cyclic number.

It is not a de Polignac number, because 859717097 - 2¹⁰ = 859716073 is a prime.

It is a super-2 number, since 2×859717097² = 1478226973748214818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (859717007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165554 + ... + 170667.

It is an arithmetic number, because the mean of its divisors is an integer number (215013969).

Almost surely, 2^859717097 is an apocalyptic number.

It is an amenable number.

859717097 is a deficient number, since it is larger than the sum of its proper divisors (338779).

859717097 is a wasteful number, since it uses less digits than its factorization.

859717097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338778.

The product of its (nonzero) digits is 1111320, while the sum is 53.

The square root of 859717097 is about 29320.9327443722. The cubic root of 859717097 is about 950.8642539575.

The spelling of 859717097 in words is "eight hundred fifty-nine million, seven hundred seventeen thousand, ninety-seven".