523923917 has 8 divisors (see below), whose sum is σ = 601635360. Its totient is φ = 451226160.

The previous prime is 523923913. The next prime is 523923919. The reversal of 523923917 is 719329325.

It is a happy number.

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

It is not a de Polignac number, because 523923917 - 2² = 523923913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (523923913) 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, 1253198 + ... + 1253615.

It is an arithmetic number, because the mean of its divisors is an integer number (75204420).

Almost surely, 2^523923917 is an apocalyptic number.

It is an amenable number.

523923917 is a deficient number, since it is larger than the sum of its proper divisors (77711443).

523923917 is a wasteful number, since it uses less digits than its factorization.

523923917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506843.

The product of its digits is 102060, while the sum is 41.

The square root of 523923917 is about 22889.3843735475. The cubic root of 523923917 is about 806.1627767589.

The spelling of 523923917 in words is "five hundred twenty-three million, nine hundred twenty-three thousand, nine hundred seventeen".