891178848 has 120 divisors (see below), whose sum is σ = 2995412112. Its totient is φ = 254617344.

The previous prime is 891178843. The next prime is 891178909. The reversal of 891178848 is 848871198.

It is a happy number.

891178848 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

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 = 891178794 and 891178803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891178843) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6415 + ... + 42702.

Almost surely, 2^891178848 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 891178848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1497706056).

891178848 is an abundant number, since it is smaller than the sum of its proper divisors (2104233264).

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

891178848 is a wasteful number, since it uses less digits than its factorization.

891178848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49146 (or 49129 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 54.

The square root of 891178848 is about 29852.6187795979. The cubic root of 891178848 is about 962.3246786532.

The spelling of 891178848 in words is "eight hundred ninety-one million, one hundred seventy-eight thousand, eight hundred forty-eight".