8820410643 has 12 divisors (see below), whose sum is σ = 13898829048. Its totient is φ = 5345703360.

The previous prime is 8820410597. The next prime is 8820410657. The reversal of 8820410643 is 3460140288.

8820410643 is a `hidden beast` number, since 8 + 8 + 2 + 0 + 4 + 1 + 0 + 643 = 666.

8820410643 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8820410643 - 2⁶ = 8820410579 is a prime.

It is a super-2 number, since 2×8820410643² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8820410598 and 8820410607.

It is not an unprimeable number, because it can be changed into a prime (8820410243) 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, 44547430 + ... + 44547627.

It is an arithmetic number, because the mean of its divisors is an integer number (1158235754).

Almost surely, 2^8820410643 is an apocalyptic number.

8820410643 is a deficient number, since it is larger than the sum of its proper divisors (5078418405).

8820410643 is a wasteful number, since it uses less digits than its factorization.

8820410643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89095074 (or 89095071 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 8820410643 is about 93917.0412811221. The cubic root of 8820410643 is about 2066.1551727611.

The spelling of 8820410643 in words is "eight billion, eight hundred twenty million, four hundred ten thousand, six hundred forty-three".