705321163 has 4 divisors (see below), whose sum is σ = 705676000. Its totient is φ = 704966328.

The previous prime is 705321119. The next prime is 705321247. The reversal of 705321163 is 361123507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361123507 = 397 ⋅909631.

It is a cyclic number.

It is not a de Polignac number, because 705321163 - 2²⁵ = 671766731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (705321103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174420 + ... + 178417.

It is an arithmetic number, because the mean of its divisors is an integer number (176419000).

Almost surely, 2^705321163 is an apocalyptic number.

705321163 is a deficient number, since it is larger than the sum of its proper divisors (354837).

705321163 is a wasteful number, since it uses less digits than its factorization.

705321163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354836.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 705321163 is about 26557.8832552596. The cubic root of 705321163 is about 890.1481733687.

The spelling of 705321163 in words is "seven hundred five million, three hundred twenty-one thousand, one hundred sixty-three".