8421869700 has 864 divisors, whose sum is σ = 32416675200. Its totient is φ = 1881169920.

The previous prime is 8421869689. The next prime is 8421869747. The reversal of 8421869700 is 79681248.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 227618082 + ... + 227618118.

It is an arithmetic number, because the mean of its divisors is an integer number (37519300).

Almost surely, 2^8421869700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8421869700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16208337600).

8421869700 is an abundant number, since it is smaller than the sum of its proper divisors (23994805500).

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

8421869700 is a wasteful number, since it uses less digits than its factorization.

8421869700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 8421869700 is about 91770.7453385882. The cubic root of 8421869700 is about 2034.5553343082. Note that the first 3 decimals are identical.

The spelling of 8421869700 in words is "eight billion, four hundred twenty-one million, eight hundred sixty-nine thousand, seven hundred".