523668893 has 8 divisors (see below), whose sum is σ = 573839616. Its totient is φ = 473925600.

The previous prime is 523668869. The next prime is 523668911. The reversal of 523668893 is 398866325.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 523668893 - 2¹⁸ = 523406749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523668193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104288 + ... + 109193.

It is an arithmetic number, because the mean of its divisors is an integer number (71729952).

Almost surely, 2^523668893 is an apocalyptic number.

It is an amenable number.

523668893 is a deficient number, since it is larger than the sum of its proper divisors (50170723).

523668893 is a wasteful number, since it uses less digits than its factorization.

523668893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213715.

The product of its digits is 1866240, while the sum is 50.

The square root of 523668893 is about 22883.8129034477. The cubic root of 523668893 is about 806.0319535510.

The spelling of 523668893 in words is "five hundred twenty-three million, six hundred sixty-eight thousand, eight hundred ninety-three".