523342217 has 4 divisors (see below), whose sum is σ = 540224256. Its totient is φ = 506460180.

The previous prime is 523342199. The next prime is 523342219. The reversal of 523342217 is 712243325.

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 cyclic number.

It is not a de Polignac number, because 523342217 - 2⁸ = 523341961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 523342217.

It is not an unprimeable number, because it can be changed into a prime (523342219) 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, 8440973 + ... + 8441034.

It is an arithmetic number, because the mean of its divisors is an integer number (135056064).

Almost surely, 2^523342217 is an apocalyptic number.

It is an amenable number.

523342217 is a deficient number, since it is larger than the sum of its proper divisors (16882039).

523342217 is a wasteful number, since it uses less digits than its factorization.

523342217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16882038.

The product of its digits is 10080, while the sum is 29.

The square root of 523342217 is about 22876.6740808187. The cubic root of 523342217 is about 805.8643119553.

The spelling of 523342217 in words is "five hundred twenty-three million, three hundred forty-two thousand, two hundred seventeen".