83707660 has 48 divisors (see below), whose sum is σ = 187246080. Its totient is φ = 31324160.

The previous prime is 83707621. The next prime is 83707661. The reversal of 83707660 is 6670738.

It is not an unprimeable number, because it can be changed into a prime (83707661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64296 + ... + 65584.

It is an arithmetic number, because the mean of its divisors is an integer number (3900960).

Almost surely, 2^83707660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83707660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93623040).

83707660 is an abundant number, since it is smaller than the sum of its proper divisors (103538420).

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

83707660 is a wasteful number, since it uses less digits than its factorization.

83707660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1506 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 83707660 is about 9149.1890351003. The cubic root of 83707660 is about 437.4432644795.

The spelling of 83707660 in words is "eighty-three million, seven hundred seven thousand, six hundred sixty".