1834706789 has 2 divisors, whose sum is σ = 1834706790. Its totient is φ = 1834706788.

The previous prime is 1834706723. The next prime is 1834706807. The reversal of 1834706789 is 9876074381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1833124225 + 1582564 = 42815^2 + 1258^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1834706789 is a prime.

It is a super-2 number, since 2×1834706789² = 6732298003205381042, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1834706789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1834706719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917353394 + 917353395.

It is an arithmetic number, because the mean of its divisors is an integer number (917353395).

Almost surely, 2^1834706789 is an apocalyptic number.

It is an amenable number.

1834706789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834706789 is an equidigital number, since it uses as much as digits as its factorization.

1834706789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2032128, while the sum is 53.

The square root of 1834706789 is about 42833.4774329612. The cubic root of 1834706789 is about 1224.2089662465.

The spelling of 1834706789 in words is "one billion, eight hundred thirty-four million, seven hundred six thousand, seven hundred eighty-nine".