534857789 has 2 divisors, whose sum is σ = 534857790. Its totient is φ = 534857788.

The previous prime is 534857777. The next prime is 534857803. The reversal of 534857789 is 987758435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 396607225 + 138250564 = 19915^2 + 11758^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-534857789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (534857749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267428894 + 267428895.

It is an arithmetic number, because the mean of its divisors is an integer number (267428895).

Almost surely, 2^534857789 is an apocalyptic number.

It is an amenable number.

534857789 is a deficient number, since it is larger than the sum of its proper divisors (1).

534857789 is an equidigital number, since it uses as much as digits as its factorization.

534857789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 56.

The square root of 534857789 is about 23126.9926492832. The cubic root of 534857789 is about 811.7322016626.

The spelling of 534857789 in words is "five hundred thirty-four million, eight hundred fifty-seven thousand, seven hundred eighty-nine".