706945720 has 64 divisors (see below), whose sum is σ = 1734768000. Its totient is φ = 257707008.

The previous prime is 706945703. The next prime is 706945721. The reversal of 706945720 is 27549607.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (706945721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32476 + ... + 49684.

It is an arithmetic number, because the mean of its divisors is an integer number (27105750).

Almost surely, 2^706945720 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 706945720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867384000).

706945720 is an abundant number, since it is smaller than the sum of its proper divisors (1027822280).

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

706945720 is a wasteful number, since it uses less digits than its factorization.

706945720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17312 (or 17308 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 706945720 is about 26588.4508762733. The cubic root of 706945720 is about 890.8310715443.

The spelling of 706945720 in words is "seven hundred six million, nine hundred forty-five thousand, seven hundred twenty".