720706572 has 120 divisors (see below), whose sum is σ = 1962058560. Its totient is φ = 230480640.

The previous prime is 720706529. The next prime is 720706577. The reversal of 720706572 is 275607027.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (720706577) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 946672 + ... + 947432.

It is an arithmetic number, because the mean of its divisors is an integer number (16350488).

Almost surely, 2^720706572 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 720706572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (981029280).

720706572 is an abundant number, since it is smaller than the sum of its proper divisors (1241351988).

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

720706572 is a wasteful number, since it uses less digits than its factorization.

720706572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 893 (or 882 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 720706572 is about 26845.9786932792. The cubic root of 720706572 is about 896.5740418934.

The spelling of 720706572 in words is "seven hundred twenty million, seven hundred six thousand, five hundred seventy-two".