834747663 has 16 divisors (see below), whose sum is σ = 1126250496. Its totient is φ = 549911520.

The previous prime is 834747593. The next prime is 834747677. The reversal of 834747663 is 366747438.

834747663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 28892²-1.

It is not a de Polignac number, because 834747663 - 2²⁵ = 801193231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (834740663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81858 + ... + 91488.

It is an arithmetic number, because the mean of its divisors is an integer number (70390656).

Almost surely, 2^834747663 is an apocalyptic number.

834747663 is a deficient number, since it is larger than the sum of its proper divisors (291502833).

834747663 is a wasteful number, since it uses less digits than its factorization.

834747663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9974.

The product of its digits is 2032128, while the sum is 48.

The square root of 834747663 is about 28891.9999826942. Note that the first 4 decimals coincide. The cubic root of 834747663 is about 941.5681020529.

The spelling of 834747663 in words is "eight hundred thirty-four million, seven hundred forty-seven thousand, six hundred sixty-three".