8705420208 has 60 divisors (see below), whose sum is σ = 24371689368. Its totient is φ = 2900782080.

The previous prime is 8705420203. The next prime is 8705420237. The reversal of 8705420208 is 8020245078.

It is a happy number.

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 (8705420201) 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, 474991 + ... + 492977.

Almost surely, 2^8705420208 is an apocalyptic number.

It is an amenable number.

8705420208 is an abundant number, since it is smaller than the sum of its proper divisors (15666269160).

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

8705420208 is a wasteful number, since it uses less digits than its factorization.

8705420208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21362 (or 21353 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 8705420208 is about 93302.8413715252. The cubic root of 8705420208 is about 2057.1371461812.

The spelling of 8705420208 in words is "eight billion, seven hundred five million, four hundred twenty thousand, two hundred eight".