878412 has 24 divisors (see below), whose sum is σ = 2080512. Its totient is φ = 288400.

The previous prime is 878411. The next prime is 878413. The reversal of 878412 is 214878.

It is an interprime number because it is at equal distance from previous prime (878411) and next prime (878413).

It is a super-3 number, since 3×878412³ = 2033368235398891584, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 878412.

It is not an unprimeable number, because it can be changed into a prime (878411) 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, 337 + ... + 1367.

It is an arithmetic number, because the mean of its divisors is an integer number (86688).

2⁸⁷⁸⁴¹² is an apocalyptic number.

It is an amenable number.

878412 is an abundant number, since it is smaller than the sum of its proper divisors (1202100).

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

878412 is a wasteful number, since it uses less digits than its factorization.

878412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1109 (or 1107 counting only the distinct ones).

The product of its digits is 3584, while the sum is 30.

The square root of 878412 is about 937.2363629309. The cubic root of 878412 is about 95.7707202010.

The spelling of 878412 in words is "eight hundred seventy-eight thousand, four hundred twelve".