83847583940 has 24 divisors (see below), whose sum is σ = 186437569752. Its totient is φ = 31566149120.

The previous prime is 83847583931. The next prime is 83847583951. The reversal of 83847583940 is 4938574838.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7115259904 + 76732324036 = 84352^2 + 277006^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83847583940.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123304931 + ... + 123305610.

It is an arithmetic number, because the mean of its divisors is an integer number (7768232073).

Almost surely, 2^83847583940 is an apocalyptic number.

It is an amenable number.

83847583940 is an abundant number, since it is smaller than the sum of its proper divisors (102589985812).

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

83847583940 is a wasteful number, since it uses less digits than its factorization.

83847583940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246610567 (or 246610565 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 59.

The spelling of 83847583940 in words is "eighty-three billion, eight hundred forty-seven million, five hundred eighty-three thousand, nine hundred forty".