705881660 has 48 divisors (see below), whose sum is σ = 1632863232. Its totient is φ = 254184000.

The previous prime is 705881653. The next prime is 705881681. The reversal of 705881660 is 66188507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7085 + ... + 38235.

It is an arithmetic number, because the mean of its divisors is an integer number (34017984).

Almost surely, 2^705881660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 705881660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (816431616).

705881660 is an abundant number, since it is smaller than the sum of its proper divisors (926981572).

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

705881660 is a wasteful number, since it uses less digits than its factorization.

705881660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31274 (or 31272 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 705881660 is about 26568.4335255205. The cubic root of 705881660 is about 890.3839020480.

The spelling of 705881660 in words is "seven hundred five million, eight hundred eighty-one thousand, six hundred sixty".