878568387 has 8 divisors (see below), whose sum is σ = 1188908736. Its totient is φ = 576970152.

The previous prime is 878568371. The next prime is 878568391. The reversal of 878568387 is 783865878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 878568387 - 2⁴ = 878568371 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 878568387.

It is not an unprimeable number, because it can be changed into a prime (878568307) 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 7 ways as a sum of consecutive naturals, for example, 2185293 + ... + 2185694.

It is an arithmetic number, because the mean of its divisors is an integer number (148613592).

Almost surely, 2^878568387 is an apocalyptic number.

878568387 is a deficient number, since it is larger than the sum of its proper divisors (310340349).

878568387 is a wasteful number, since it uses less digits than its factorization.

878568387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371057.

The product of its digits is 18063360, while the sum is 60.

The square root of 878568387 is about 29640.6542943978. The cubic root of 878568387 is about 957.7640333783.

The spelling of 878568387 in words is "eight hundred seventy-eight million, five hundred sixty-eight thousand, three hundred eighty-seven".