878417046 has 72 divisors (see below), whose sum is σ = 2111467176. Its totient is φ = 263652480.

The previous prime is 878417021. The next prime is 878417051. The reversal of 878417046 is 640714878.

878417046 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×878417046² = 1543233013406732232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 878416992 and 878417010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 121201 + ... + 128243.

It is an arithmetic number, because the mean of its divisors is an integer number (29325933).

Almost surely, 2^878417046 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 878417046, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1055733588).

878417046 is an abundant number, since it is smaller than the sum of its proper divisors (1233050130).

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

878417046 is a wasteful number, since it uses less digits than its factorization.

878417046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7118 (or 7102 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 45.

The square root of 878417046 is about 29638.1012549725. The cubic root of 878417046 is about 957.7090358420.

The spelling of 878417046 in words is "eight hundred seventy-eight million, four hundred seventeen thousand, forty-six".