523681417 has 4 divisors (see below), whose sum is σ = 598493056. Its totient is φ = 448869780.

The previous prime is 523681373. The next prime is 523681421. The reversal of 523681417 is 714186325.

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 523681417 - 2¹¹ = 523679369 is a prime.

It is a super-2 number, since 2×523681417² = 548484453022255778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (523681427) 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, 37405809 + ... + 37405822.

It is an arithmetic number, because the mean of its divisors is an integer number (149623264).

Almost surely, 2^523681417 is an apocalyptic number.

It is an amenable number.

523681417 is a deficient number, since it is larger than the sum of its proper divisors (74811639).

523681417 is an equidigital number, since it uses as much as digits as its factorization.

523681417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74811638.

The product of its digits is 40320, while the sum is 37.

The square root of 523681417 is about 22884.0865450208. The cubic root of 523681417 is about 806.0383791530.

The spelling of 523681417 in words is "five hundred twenty-three million, six hundred eighty-one thousand, four hundred seventeen".