705371663 has 4 divisors (see below), whose sum is σ = 724435800. Its totient is φ = 686307528.

The previous prime is 705371657. The next prime is 705371683. The reversal of 705371663 is 366173507.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 705371663 - 2¹⁰ = 705370639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705371683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9532013 + ... + 9532086.

It is an arithmetic number, because the mean of its divisors is an integer number (181108950).

Almost surely, 2^705371663 is an apocalyptic number.

705371663 is a deficient number, since it is larger than the sum of its proper divisors (19064137).

705371663 is a wasteful number, since it uses less digits than its factorization.

705371663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19064136.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 705371663 is about 26558.8339917249. The cubic root of 705371663 is about 890.1694173127.

The spelling of 705371663 in words is "seven hundred five million, three hundred seventy-one thousand, six hundred sixty-three".