878756380 has 24 divisors (see below), whose sum is σ = 1904918400. Its totient is φ = 340163520.

The previous prime is 878756369. The next prime is 878756387. The reversal of 878756380 is 83657878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878756387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 708055 + ... + 709294.

It is an arithmetic number, because the mean of its divisors is an integer number (79371600).

Almost surely, 2^878756380 is an apocalyptic number.

It is an amenable number.

878756380 is an abundant number, since it is smaller than the sum of its proper divisors (1026162020).

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

878756380 is a wasteful number, since it uses less digits than its factorization.

878756380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417389 (or 1417387 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 52.

The square root of 878756380 is about 29643.8253267017. The cubic root of 878756380 is about 957.8323415091.

The spelling of 878756380 in words is "eight hundred seventy-eight million, seven hundred fifty-six thousand, three hundred eighty".