8720458632 has 48 divisors (see below), whose sum is σ = 23776447500. Its totient is φ = 2887307136.

The previous prime is 8720458619. The next prime is 8720458639. The reversal of 8720458632 is 2368540278.

8720458632 is a `hidden beast` number, since 8 + 7 + 2 + 0 + 4 + 5 + 8 + 632 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6728264676 + 1992193956 = 82026^2 + 44634^2 .

It is a super-2 number, since 2×8720458632² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8720458639) 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, 395707 + ... + 417162.

Almost surely, 2^8720458632 is an apocalyptic number.

It is an amenable number.

8720458632 is an abundant number, since it is smaller than the sum of its proper divisors (15055988868).

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

8720458632 is a wasteful number, since it uses less digits than its factorization.

8720458632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813030 (or 813023 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 8720458632 is about 93383.3959116930. The cubic root of 8720458632 is about 2058.3210179590.

The spelling of 8720458632 in words is "eight billion, seven hundred twenty million, four hundred fifty-eight thousand, six hundred thirty-two".