878964 has 24 divisors (see below), whose sum is σ = 2076480. Its totient is φ = 289344.

The previous prime is 878957. The next prime is 878987. The reversal of 878964 is 469878.

878964 = 52² + 53² + ... + 140².

It is a happy number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

878964 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 657 + ... + 1479.

It is an arithmetic number, because the mean of its divisors is an integer number (86520).

2⁸⁷⁸⁹⁶⁴ is an apocalyptic number.

It is an amenable number.

878964 is an abundant number, since it is smaller than the sum of its proper divisors (1197516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

878964 is a wasteful number, since it uses less digits than its factorization.

878964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 919 (or 917 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 878964 is about 937.5307994941. The cubic root of 878964 is about 95.7907769882.

The spelling of 878964 in words is "eight hundred seventy-eight thousand, nine hundred sixty-four".