705332221 has 8 divisors (see below), whose sum is σ = 790249824. Its totient is φ = 623880720.

The previous prime is 705332213. The next prime is 705332233. The reversal of 705332221 is 122233507.

705332221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 705332221 - 2³ = 705332213 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 (705332281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 866095 + ... + 866908.

It is an arithmetic number, because the mean of its divisors is an integer number (98781228).

Almost surely, 2^705332221 is an apocalyptic number.

It is an amenable number.

705332221 is a deficient number, since it is larger than the sum of its proper divisors (84917603).

705332221 is a wasteful number, since it uses less digits than its factorization.

705332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733051.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 705332221 is about 26558.0914412162. The cubic root of 705332221 is about 890.1528252481.

Adding to 705332221 its reverse (122233507), we get a palindrome (827565728).

The spelling of 705332221 in words is "seven hundred five million, three hundred thirty-two thousand, two hundred twenty-one".