834590521 has 2 divisors, whose sum is σ = 834590522. Its totient is φ = 834590520.

The previous prime is 834590467. The next prime is 834590527. The reversal of 834590521 is 125095438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 538750521 + 295840000 = 23211^2 + 17200^2 .

It is a cyclic number.

It is not a de Polignac number, because 834590521 - 2¹¹ = 834588473 is a prime.

It is not a weakly prime, because it can be changed into another prime (834590527) 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, 417295260 + 417295261.

It is an arithmetic number, because the mean of its divisors is an integer number (417295261).

Almost surely, 2^834590521 is an apocalyptic number.

It is an amenable number.

834590521 is a deficient number, since it is larger than the sum of its proper divisors (1).

834590521 is an equidigital number, since it uses as much as digits as its factorization.

834590521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 834590521 is about 28889.2803821764. The cubic root of 834590521 is about 941.5090146637.

The spelling of 834590521 in words is "eight hundred thirty-four million, five hundred ninety thousand, five hundred twenty-one".