834740663 has 2 divisors, whose sum is σ = 834740664. Its totient is φ = 834740662.

The previous prime is 834740657. The next prime is 834740719. The reversal of 834740663 is 366047438.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 834740663 - 2¹⁰ = 834739639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 834740663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (834740603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417370331 + 417370332.

It is an arithmetic number, because the mean of its divisors is an integer number (417370332).

Almost surely, 2^834740663 is an apocalyptic number.

834740663 is a deficient number, since it is larger than the sum of its proper divisors (1).

834740663 is an equidigital number, since it uses as much as digits as its factorization.

834740663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 290304, while the sum is 41.

The square root of 834740663 is about 28891.8788416399. The cubic root of 834740663 is about 941.5654701218.

The spelling of 834740663 in words is "eight hundred thirty-four million, seven hundred forty thousand, six hundred sixty-three".