878542869 has 8 divisors (see below), whose sum is σ = 1171595232. Its totient is φ = 585592880.

The previous prime is 878542829. The next prime is 878542877. The reversal of 878542869 is 968245878.

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 878542869 - 2¹⁷ = 878411797 is a prime.

It is a super-2 number, since 2×878542869² = 1543675145341502322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878542829) 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, 2622 + ... + 41999.

It is an arithmetic number, because the mean of its divisors is an integer number (146449404).

Almost surely, 2^878542869 is an apocalyptic number.

It is an amenable number.

878542869 is a deficient number, since it is larger than the sum of its proper divisors (293052363).

878542869 is a wasteful number, since it uses less digits than its factorization.

878542869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51187.

The product of its digits is 7741440, while the sum is 57.

The square root of 878542869 is about 29640.2238351872. The cubic root of 878542869 is about 957.7547605432.

The spelling of 878542869 in words is "eight hundred seventy-eight million, five hundred forty-two thousand, eight hundred sixty-nine".