534657786 has 64 divisors (see below), whose sum is σ = 1247799168. Its totient is φ = 151216128.

The previous prime is 534657779. The next prime is 534657787. The reversal of 534657786 is 687756435.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (534657787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52330 + ... + 61706.

It is an arithmetic number, because the mean of its divisors is an integer number (19496862).

Almost surely, 2^534657786 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 534657786, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (623899584).

534657786 is an abundant number, since it is smaller than the sum of its proper divisors (713141382).

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

534657786 is a wasteful number, since it uses less digits than its factorization.

534657786 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9455.

The product of its digits is 4233600, while the sum is 51.

The square root of 534657786 is about 23122.6682283858. The cubic root of 534657786 is about 811.6310102063.

The spelling of 534657786 in words is "five hundred thirty-four million, six hundred fifty-seven thousand, seven hundred eighty-six".