83660076 has 72 divisors (see below), whose sum is σ = 217591920. Its totient is φ = 27091584.

The previous prime is 83660051. The next prime is 83660113. The reversal of 83660076 is 67006638.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 83660076.

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, 310870 + ... + 311138.

It is an arithmetic number, because the mean of its divisors is an integer number (3022110).

Almost surely, 2^83660076 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 83660076, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108795960).

83660076 is an abundant number, since it is smaller than the sum of its proper divisors (133931844).

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

83660076 is a wasteful number, since it uses less digits than its factorization.

83660076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 83660076 is about 9146.5882163788. The cubic root of 83660076 is about 437.3603598974.

The spelling of 83660076 in words is "eighty-three million, six hundred sixty thousand, seventy-six".