720712212 has 96 divisors (see below), whose sum is σ = 1949754240. Its totient is φ = 204779520.

The previous prime is 720712193. The next prime is 720712219. The reversal of 720712212 is 212217027.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720712219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 890464 + ... + 891272.

It is an arithmetic number, because the mean of its divisors is an integer number (20309940).

Almost surely, 2^720712212 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 720712212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974877120).

720712212 is an abundant number, since it is smaller than the sum of its proper divisors (1229042028).

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

720712212 is a wasteful number, since it uses less digits than its factorization.

720712212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241 (or 1239 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 720712212 is about 26846.0837367390. The cubic root of 720712212 is about 896.5763806466.

Adding to 720712212 its reverse (212217027), we get a palindrome (932929239).

The spelling of 720712212 in words is "seven hundred twenty million, seven hundred twelve thousand, two hundred twelve".