868523417 has 4 divisors (see below), whose sum is σ = 888721680. Its totient is φ = 848325156.

The previous prime is 868523389. The next prime is 868523431. The reversal of 868523417 is 714325868.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-868523417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868523437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10099067 + ... + 10099152.

It is an arithmetic number, because the mean of its divisors is an integer number (222180420).

Almost surely, 2^868523417 is an apocalyptic number.

It is an amenable number.

868523417 is a deficient number, since it is larger than the sum of its proper divisors (20198263).

868523417 is a wasteful number, since it uses less digits than its factorization.

868523417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20198262.

The product of its digits is 322560, while the sum is 44.

The square root of 868523417 is about 29470.7213518774. The cubic root of 868523417 is about 954.0998863310.

The spelling of 868523417 in words is "eight hundred sixty-eight million, five hundred twenty-three thousand, four hundred seventeen".