834638005 has 8 divisors (see below), whose sum is σ = 1002375000. Its totient is φ = 667170816.

The previous prime is 834638003. The next prime is 834638027. The reversal of 834638005 is 500836438.

It can be written as a sum of positive squares in 4 ways, for example, as 10201636 + 824436369 = 3194^2 + 28713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 834638005 - 2¹ = 834638003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834638003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60580 + ... + 73069.

It is an arithmetic number, because the mean of its divisors is an integer number (125296875).

Almost surely, 2^834638005 is an apocalyptic number.

It is an amenable number.

834638005 is a deficient number, since it is larger than the sum of its proper divisors (167736995).

834638005 is a wasteful number, since it uses less digits than its factorization.

834638005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134903.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 834638005 is about 28890.1021978116. The cubic root of 834638005 is about 941.5268700331.

The spelling of 834638005 in words is "eight hundred thirty-four million, six hundred thirty-eight thousand, five".