878536985 has 8 divisors (see below), whose sum is σ = 1058770440. Its totient is φ = 699812224.

The previous prime is 878536973. The next prime is 878536987. The reversal of 878536985 is 589635878.

878536985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 659344 + 877877641 = 812^2 + 29629^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 878536985 - 2⁶ = 878536921 is a prime.

It is a super-3 number, since 3×878536985³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (878536987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375890 + ... + 378219.

It is an arithmetic number, because the mean of its divisors is an integer number (132346305).

Almost surely, 2^878536985 is an apocalyptic number.

It is an amenable number.

878536985 is a deficient number, since it is larger than the sum of its proper divisors (180233455).

878536985 is a wasteful number, since it uses less digits than its factorization.

878536985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754347.

The product of its digits is 14515200, while the sum is 59.

The square root of 878536985 is about 29640.1245780108. The cubic root of 878536985 is about 957.7526223658.

The spelling of 878536985 in words is "eight hundred seventy-eight million, five hundred thirty-six thousand, nine hundred eighty-five".