8327121444 has 72 divisors (see below), whose sum is σ = 21208195008. Its totient is φ = 2754803520.

The previous prime is 8327121433. The next prime is 8327121463. The reversal of 8327121444 is 4441217238.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8327121399 and 8327121408.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3452599 + ... + 3455009.

It is an arithmetic number, because the mean of its divisors is an integer number (294558264).

Almost surely, 2^8327121444 is an apocalyptic number.

It is an amenable number.

8327121444 is an abundant number, since it is smaller than the sum of its proper divisors (12881073564).

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

8327121444 is a wasteful number, since it uses less digits than its factorization.

8327121444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105 (or 3100 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 8327121444 is about 91253.0626554528. The cubic root of 8327121444 is about 2026.8967804247.

The spelling of 8327121444 in words is "eight billion, three hundred twenty-seven million, one hundred twenty-one thousand, four hundred forty-four".