534664856 has 64 divisors (see below), whose sum is σ = 1123476480. Its totient is φ = 236462080.

The previous prime is 534664853. The next prime is 534664957. The reversal of 534664856 is 658466435.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a self number, because there is not a number n which added to its sum of digits gives 534664856.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (534664853) 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, 1062701 + ... + 1063203.

It is an arithmetic number, because the mean of its divisors is an integer number (17554320).

Almost surely, 2^534664856 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 534664856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (561738240).

534664856 is an abundant number, since it is smaller than the sum of its proper divisors (588811624).

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

534664856 is a wasteful number, since it uses less digits than its factorization.

534664856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824 (or 820 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 47.

The square root of 534664856 is about 23122.8211081607. The cubic root of 534664856 is about 811.6345877009.

The spelling of 534664856 in words is "five hundred thirty-four million, six hundred sixty-four thousand, eight hundred fifty-six".