878764 has 12 divisors (see below), whose sum is σ = 1628424. Its totient is φ = 413504.

The previous prime is 878749. The next prime is 878777. The reversal of 878764 is 467878.

878764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

878764 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6394 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (135702).

2⁸⁷⁸⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

878764 is a deficient number, since it is larger than the sum of its proper divisors (749660).

878764 is a wasteful number, since it uses less digits than its factorization.

878764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12944 (or 12942 counting only the distinct ones).

The product of its digits is 75264, while the sum is 40.

The square root of 878764 is about 937.4241302634. The cubic root of 878764 is about 95.7835110066.

The spelling of 878764 in words is "eight hundred seventy-eight thousand, seven hundred sixty-four".