840735163 has 2 divisors, whose sum is σ = 840735164. Its totient is φ = 840735162.

The previous prime is 840735139. The next prime is 840735167. The reversal of 840735163 is 361537048.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 840735163 - 2²⁹ = 303864251 is a prime.

It is a super-2 number, since 2×840735163² = 1413671228609273138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (840735167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420367581 + 420367582.

It is an arithmetic number, because the mean of its divisors is an integer number (420367582).

Almost surely, 2^840735163 is an apocalyptic number.

840735163 is a deficient number, since it is larger than the sum of its proper divisors (1).

840735163 is an equidigital number, since it uses as much as digits as its factorization.

840735163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 840735163 is about 28995.4334852921. The cubic root of 840735163 is about 943.8139756464.

The spelling of 840735163 in words is "eight hundred forty million, seven hundred thirty-five thousand, one hundred sixty-three".