8720458633 has 16 divisors (see below), whose sum is σ = 9543723840. Its totient is φ = 7939641600.

The previous prime is 8720458619. The next prime is 8720458639. The reversal of 8720458633 is 3368540278.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8720458633 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 31348 + ... + 135733.

It is an arithmetic number, because the mean of its divisors is an integer number (596482740).

Almost surely, 2^8720458633 is an apocalyptic number.

It is an amenable number.

8720458633 is a deficient number, since it is larger than the sum of its proper divisors (823265207).

8720458633 is a wasteful number, since it uses less digits than its factorization.

8720458633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167208.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 8720458633 is about 93383.3959170473. The cubic root of 8720458633 is about 2058.3210180377.

The spelling of 8720458633 in words is "eight billion, seven hundred twenty million, four hundred fifty-eight thousand, six hundred thirty-three".