76660 has 12 divisors (see below), whose sum is σ = 161028. Its totient is φ = 30656.

The previous prime is 76651. The next prime is 76667. The reversal of 76660 is 6667.

It can be written as a sum of positive squares in 2 ways, for example, as 21904 + 54756 = 148^2 + 234^2 .

It is a plaindrome in base 15.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76667) by changing a digit.

76660 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (13419).

2⁷⁶⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

76660 is an abundant number, since it is smaller than the sum of its proper divisors (84368).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80514).

76660 is a wasteful number, since it uses less digits than its factorization.

76660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3842 (or 3840 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 76660 is about 276.8754232502. The cubic root of 76660 is about 42.4804985501.

The spelling of 76660 in words is "seventy-six thousand, six hundred sixty".