705431322 has 64 divisors (see below), whose sum is σ = 1661385600. Its totient is φ = 221477760.

The previous prime is 705431263. The next prime is 705431327. The reversal of 705431322 is 223134507.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (705431327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58713 + ... + 69699.

It is an arithmetic number, because the mean of its divisors is an integer number (25959150).

Almost surely, 2^705431322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 705431322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (830692800).

705431322 is an abundant number, since it is smaller than the sum of its proper divisors (955954278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

705431322 is a wasteful number, since it uses less digits than its factorization.

705431322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11068 (or 11062 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 705431322 is about 26559.9571159292. The cubic root of 705431322 is about 890.1945128866.

Adding to 705431322 its reverse (223134507), we get a palindrome (928565829).

The spelling of 705431322 in words is "seven hundred five million, four hundred thirty-one thousand, three hundred twenty-two".