720970930 has 16 divisors (see below), whose sum is σ = 1311128280. Its totient is φ = 285414912.

The previous prime is 720970889. The next prime is 720970931. The reversal of 720970930 is 39079027.

720970930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 711662329 + 9308601 = 26677^2 + 3051^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 720970930.

It is not an unprimeable number, because it can be changed into a prime (720970931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370665 + ... + 372604.

Almost surely, 2^720970930 is an apocalyptic number.

720970930 is a deficient number, since it is larger than the sum of its proper divisors (590157350).

720970930 is a wasteful number, since it uses less digits than its factorization.

720970930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743373.

The product of its (nonzero) digits is 23814, while the sum is 37.

The square root of 720970930 is about 26850.9018470516. The cubic root of 720970930 is about 896.6836507856.

The spelling of 720970930 in words is "seven hundred twenty million, nine hundred seventy thousand, nine hundred thirty".