876860640 has 288 divisors, whose sum is σ = 3269185920. Its totient is φ = 221336064.

The previous prime is 876860639. The next prime is 876860651. The reversal of 876860640 is 46068678.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 738127 + ... + 739313.

It is an arithmetic number, because the mean of its divisors is an integer number (11351340).

Almost surely, 2^876860640 is an apocalyptic number.

876860640 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 876860640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634592960).

876860640 is an abundant number, since it is smaller than the sum of its proper divisors (2392325280).

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

876860640 is a wasteful number, since it uses less digits than its factorization.

876860640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The square root of 876860640 is about 29611.8327700262. The cubic root of 876860640 is about 957.1430687925.

The spelling of 876860640 in words is "eight hundred seventy-six million, eight hundred sixty thousand, six hundred forty".