834683921 has 2 divisors, whose sum is σ = 834683922. Its totient is φ = 834683920.

The previous prime is 834683903. The next prime is 834683947. The reversal of 834683921 is 129386438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 750760000 + 83923921 = 27400^2 + 9161^2 .

It is a cyclic number.

It is not a de Polignac number, because 834683921 - 2¹⁰ = 834682897 is a prime.

It is not a weakly prime, because it can be changed into another prime (834683321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417341960 + 417341961.

It is an arithmetic number, because the mean of its divisors is an integer number (417341961).

Almost surely, 2^834683921 is an apocalyptic number.

It is an amenable number.

834683921 is a deficient number, since it is larger than the sum of its proper divisors (1).

834683921 is an equidigital number, since it uses as much as digits as its factorization.

834683921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 834683921 is about 28890.8968535073. The cubic root of 834683921 is about 941.5441351448.

The spelling of 834683921 in words is "eight hundred thirty-four million, six hundred eighty-three thousand, nine hundred twenty-one".