720622312 has 16 divisors (see below), whose sum is σ = 1365097860. Its totient is φ = 356596224.

The previous prime is 720622303. The next prime is 720622313. The reversal of 720622312 is 213226027.

It can be written as a sum of positive squares in 2 ways, for example, as 719634276 + 988036 = 26826^2 + 994^2 .

It is not an unprimeable number, because it can be changed into a prime (720622313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 463543 + ... + 465094.

Almost surely, 2^720622312 is an apocalyptic number.

It is an amenable number.

720622312 is a deficient number, since it is larger than the sum of its proper divisors (644475548).

720622312 is a wasteful number, since it uses less digits than its factorization.

720622312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928740 (or 928736 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 720622312 is about 26844.4093248483. The cubic root of 720622312 is about 896.5391001312.

Adding to 720622312 its reverse (213226027), we get a palindrome (933848339).

The spelling of 720622312 in words is "seven hundred twenty million, six hundred twenty-two thousand, three hundred twelve".