523313687 has 16 divisors (see below), whose sum is σ = 593503680. Its totient is φ = 457788672.

The previous prime is 523313677. The next prime is 523313701. The reversal of 523313687 is 786313325.

It is a cyclic number.

It is not a de Polignac number, because 523313687 - 2²² = 519119383 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 523313687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523313647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24563 + ... + 40619.

It is an arithmetic number, because the mean of its divisors is an integer number (37093980).

Almost surely, 2^523313687 is an apocalyptic number.

523313687 is a deficient number, since it is larger than the sum of its proper divisors (70189993).

523313687 is a wasteful number, since it uses less digits than its factorization.

523313687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16202.

The product of its digits is 90720, while the sum is 38.

The square root of 523313687 is about 22876.0505113973. The cubic root of 523313687 is about 805.8496677920.

The spelling of 523313687 in words is "five hundred twenty-three million, three hundred thirteen thousand, six hundred eighty-seven".