8399977620 has 48 divisors (see below), whose sum is σ = 24278650368. Its totient is φ = 2167735680.

The previous prime is 8399977613. The next prime is 8399977673. The reversal of 8399977620 is 267799938.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256199 + ... + 2259918.

It is an arithmetic number, because the mean of its divisors is an integer number (505805216).

Almost surely, 2^8399977620 is an apocalyptic number.

It is an amenable number.

8399977620 is an abundant number, since it is smaller than the sum of its proper divisors (15878672748).

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

8399977620 is a wasteful number, since it uses less digits than its factorization.

8399977620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516160 (or 4516158 counting only the distinct ones).

The product of its (nonzero) digits is 10287648, while the sum is 60.

The square root of 8399977620 is about 91651.3918061259. The cubic root of 8399977620 is about 2032.7909083146.

The spelling of 8399977620 in words is "eight billion, three hundred ninety-nine million, nine hundred seventy-seven thousand, six hundred twenty".