878457312 has 120 divisors (see below), whose sum is σ = 2596637736. Its totient is φ = 291333888.

The previous prime is 878457287. The next prime is 878457319. The reversal of 878457312 is 213754878.

878457312 is a `hidden beast` number, since 8 + 78 + 4 + 573 + 1 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878457319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 587638 + ... + 589130.

Almost surely, 2^878457312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878457312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298318868).

878457312 is an abundant number, since it is smaller than the sum of its proper divisors (1718180424).

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

878457312 is a wasteful number, since it uses less digits than its factorization.

878457312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742 (or 1725 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 878457312 is about 29638.7805417159. The cubic root of 878457312 is about 957.7236691808.

The spelling of 878457312 in words is "eight hundred seventy-eight million, four hundred fifty-seven thousand, three hundred twelve".