878648 has 8 divisors (see below), whose sum is σ = 1647480. Its totient is φ = 439320.

The previous prime is 878641. The next prime is 878651. The reversal of 878648 is 846878.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878648.

It is not an unprimeable number, because it can be changed into a prime (878641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54908 + ... + 54923.

It is an arithmetic number, because the mean of its divisors is an integer number (205935).

2⁸⁷⁸⁶⁴⁸ is an apocalyptic number.

It is an amenable number.

878648 is a deficient number, since it is larger than the sum of its proper divisors (768832).

878648 is a wasteful number, since it uses less digits than its factorization.

878648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109837 (or 109833 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 878648 is about 937.3622565476. The cubic root of 878648 is about 95.7792962321.

The spelling of 878648 in words is "eight hundred seventy-eight thousand, six hundred forty-eight".