878984 has 8 divisors (see below), whose sum is σ = 1648110. Its totient is φ = 439488.

The previous prime is 878957. The next prime is 878987. The reversal of 878984 is 489878.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 850084 + 28900 = 922^2 + 170^2 .

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

It is a super-2 number, since 2×878984² = 1545225744512, which contains 22 as substring.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878984.

It is not an unprimeable number, because it can be changed into a prime (878987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54929 + ... + 54944.

2⁸⁷⁸⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

878984 is a deficient number, since it is larger than the sum of its proper divisors (769126).

878984 is a wasteful number, since it uses less digits than its factorization.

878984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109879 (or 109875 counting only the distinct ones).

The product of its digits is 129024, while the sum is 44.

The square root of 878984 is about 937.5414657496. The cubic root of 878984 is about 95.7915035257.

The spelling of 878984 in words is "eight hundred seventy-eight thousand, nine hundred eighty-four".