705133661 has 4 divisors (see below), whose sum is σ = 715658112. Its totient is φ = 694609212.

The previous prime is 705133577. The next prime is 705133691. The reversal of 705133661 is 166331507.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 705133661 - 2²⁶ = 638024797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (705133691) 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, 5262125 + ... + 5262258.

It is an arithmetic number, because the mean of its divisors is an integer number (178914528).

Almost surely, 2^705133661 is an apocalyptic number.

It is an amenable number.

705133661 is a deficient number, since it is larger than the sum of its proper divisors (10524451).

705133661 is a wasteful number, since it uses less digits than its factorization.

705133661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10524450.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 705133661 is about 26554.3529576603. The cubic root of 705133661 is about 890.0692876243.

The spelling of 705133661 in words is "seven hundred five million, one hundred thirty-three thousand, six hundred sixty-one".