834806409 has 8 divisors (see below), whose sum is σ = 1148980992. Its totient is φ = 538584720.

The previous prime is 834806387. The next prime is 834806473. The reversal of 834806409 is 904608438.

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

It is not a de Polignac number, because 834806409 - 2⁵ = 834806377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (834806009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4488114 + ... + 4488299.

It is an arithmetic number, because the mean of its divisors is an integer number (143622624).

Almost surely, 2^834806409 is an apocalyptic number.

It is an amenable number.

834806409 is a deficient number, since it is larger than the sum of its proper divisors (314174583).

834806409 is a wasteful number, since it uses less digits than its factorization.

834806409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8976447.

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 834806409 is about 28893.0166130157. The cubic root of 834806409 is about 941.5901893913.

The spelling of 834806409 in words is "eight hundred thirty-four million, eight hundred six thousand, four hundred nine".