720972108 has 36 divisors (see below), whose sum is σ = 1929662280. Its totient is φ = 226187136.

The previous prime is 720972101. The next prime is 720972143. The reversal of 720972108 is 801279027.

720972108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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 (720972101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588418 + ... + 589641.

It is an arithmetic number, because the mean of its divisors is an integer number (53601730).

Almost surely, 2^720972108 is an apocalyptic number.

It is an amenable number.

720972108 is an abundant number, since it is smaller than the sum of its proper divisors (1208690172).

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

720972108 is a wasteful number, since it uses less digits than its factorization.

720972108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178086 (or 1178081 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 720972108 is about 26850.9237829912. The cubic root of 720972108 is about 896.6841391515.

The spelling of 720972108 in words is "seven hundred twenty million, nine hundred seventy-two thousand, one hundred eight".