720938650 has 12 divisors (see below), whose sum is σ = 1340945982. Its totient is φ = 288375440.

The previous prime is 720938633. The next prime is 720938653. The reversal of 720938650 is 56839027.

It can be written as a sum of positive squares in 3 ways, for example, as 670343881 + 50594769 = 25891^2 + 7113^2 .

It is not an unprimeable number, because it can be changed into a prime (720938653) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7209337 + ... + 7209436.

Almost surely, 2^720938650 is an apocalyptic number.

720938650 is a deficient number, since it is larger than the sum of its proper divisors (620007332).

720938650 is a wasteful number, since it uses less digits than its factorization.

720938650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14418785 (or 14418780 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 720938650 is about 26850.3007431947. The cubic root of 720938650 is about 896.6702681932.

The spelling of 720938650 in words is "seven hundred twenty million, nine hundred thirty-eight thousand, six hundred fifty".