878961 has 8 divisors (see below), whose sum is σ = 1212480. Its totient is φ = 565712.

The previous prime is 878957. The next prime is 878987. The reversal of 878961 is 169878.

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 878961 - 2² = 878957 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (879961) 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, 4965 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (151560).

2⁸⁷⁸⁹⁶¹ is an apocalyptic number.

It is an amenable number.

878961 is a deficient number, since it is larger than the sum of its proper divisors (333519).

878961 is a wasteful number, since it uses less digits than its factorization.

878961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10135.

The product of its digits is 24192, while the sum is 39.

The square root of 878961 is about 937.5291995453. The cubic root of 878961 is about 95.7906680066.

The spelling of 878961 in words is "eight hundred seventy-eight thousand, nine hundred sixty-one".