878225844 has 12 divisors (see below), whose sum is σ = 2049193664. Its totient is φ = 292741944.

The previous prime is 878225839. The next prime is 878225867. The reversal of 878225844 is 448522878.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 878225793 and 878225802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36592732 + ... + 36592755.

Almost surely, 2^878225844 is an apocalyptic number.

It is an amenable number.

878225844 is an abundant number, since it is smaller than the sum of its proper divisors (1170967820).

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

878225844 is a wasteful number, since it uses less digits than its factorization.

878225844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73185494 (or 73185492 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 48.

The square root of 878225844 is about 29634.8754679347. The cubic root of 878225844 is about 957.6395437286.

The spelling of 878225844 in words is "eight hundred seventy-eight million, two hundred twenty-five thousand, eight hundred forty-four".