8337021990 has 64 divisors (see below), whose sum is σ = 21846827520. Its totient is φ = 2019338240.

The previous prime is 8337021971. The next prime is 8337021997. The reversal of 8337021990 is 991207338.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8337021997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 391231 + ... + 411989.

It is an arithmetic number, because the mean of its divisors is an integer number (341356680).

Almost surely, 2^8337021990 is an apocalyptic number.

8337021990 is an abundant number, since it is smaller than the sum of its proper divisors (13509805530).

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

8337021990 is a wasteful number, since it uses less digits than its factorization.

8337021990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21997.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 8337021990 is about 91307.2942869298. The cubic root of 8337021990 is about 2027.6997564649.

It can be divided in two parts, 83 and 37021990, that added together give a palindrome (37022073).

The spelling of 8337021990 in words is "eight billion, three hundred thirty-seven million, twenty-one thousand, nine hundred ninety".