523866816 has 168 divisors, whose sum is σ = 1658264400. Its totient is φ = 156794880.

The previous prime is 523866793. The next prime is 523866839. The reversal of 523866816 is 618668325.

It is an interprime number because it is at equal distance from previous prime (523866793) and next prime (523866839).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 563440 + ... + 564368.

Almost surely, 2^523866816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 523866816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (829132200).

523866816 is an abundant number, since it is smaller than the sum of its proper divisors (1134397584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

523866816 is a wasteful number, since it uses less digits than its factorization.

523866816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047 (or 1034 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The square root of 523866816 is about 22888.1370146196. The cubic root of 523866816 is about 806.1334885540.

The spelling of 523866816 in words is "five hundred twenty-three million, eight hundred sixty-six thousand, eight hundred sixteen".