876489660 has 180 divisors, whose sum is σ = 2846184264. Its totient is φ = 225789120.

The previous prime is 876489637. The next prime is 876489661. The reversal of 876489660 is 66984678.

It is a tau number, because it is divible by the number of its divisors (180).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 876489597 and 876489606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (876489661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1556539 + ... + 1557101.

Almost surely, 2^876489660 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 876489660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1423092132).

876489660 is an abundant number, since it is smaller than the sum of its proper divisors (1969694604).

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

876489660 is a wasteful number, since it uses less digits than its factorization.

876489660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 604 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 54.

The square root of 876489660 is about 29605.5680573773. The cubic root of 876489660 is about 957.0080678558.

The spelling of 876489660 in words is "eight hundred seventy-six million, four hundred eighty-nine thousand, six hundred sixty".