83968660 has 12 divisors (see below), whose sum is σ = 176334228. Its totient is φ = 33587456.

The previous prime is 83968639. The next prime is 83968669. The reversal of 83968660 is 6686938.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 43059844 + 40908816 = 6562^2 + 6396^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 83968660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83968669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099197 + ... + 2099236.

It is an arithmetic number, because the mean of its divisors is an integer number (14694519).

Almost surely, 2^83968660 is an apocalyptic number.

It is an amenable number.

83968660 is an abundant number, since it is smaller than the sum of its proper divisors (92365568).

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

83968660 is a wasteful number, since it uses less digits than its factorization.

83968660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198442 (or 4198440 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 83968660 is about 9163.4414932382. The cubic root of 83968660 is about 437.8974412892.

The spelling of 83968660 in words is "eighty-three million, nine hundred sixty-eight thousand, six hundred sixty".