533805864 has 64 divisors (see below), whose sum is σ = 1381578240. Its totient is φ = 171694080.

The previous prime is 533805851. The next prime is 533805887. The reversal of 533805864 is 468508335.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 321324 + ... + 322980.

It is an arithmetic number, because the mean of its divisors is an integer number (21587160).

Almost surely, 2^533805864 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 533805864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (690789120).

533805864 is an abundant number, since it is smaller than the sum of its proper divisors (847772376).

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

533805864 is a wasteful number, since it uses less digits than its factorization.

533805864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130 (or 2126 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 42.

The square root of 533805864 is about 23104.2390915607. The cubic root of 533805864 is about 811.1996976256.

The spelling of 533805864 in words is "five hundred thirty-three million, eight hundred five thousand, eight hundred sixty-four".