878322648 has 48 divisors (see below), whose sum is σ = 2554309080. Its totient is φ = 250948992.

The previous prime is 878322647. The next prime is 878322649. The reversal of 878322648 is 846223878.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (878322647) and next prime (878322649).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 878322597 and 878322606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878322647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 372261 + ... + 374612.

Almost surely, 2^878322648 is an apocalyptic number.

It is an amenable number.

878322648 is an abundant number, since it is smaller than the sum of its proper divisors (1675986432).

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

878322648 is a wasteful number, since it uses less digits than its factorization.

878322648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746896 (or 746885 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 48.

The square root of 878322648 is about 29636.5087012624. The cubic root of 878322648 is about 957.6747282745.

The spelling of 878322648 in words is "eight hundred seventy-eight million, three hundred twenty-two thousand, six hundred forty-eight".