823438848 has 80 divisors (see below), whose sum is σ = 2253137040. Its totient is φ = 267042816.

The previous prime is 823438813. The next prime is 823438867. The reversal of 823438848 is 848834328.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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 = 823438797 and 823438806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49588 + ... + 64076.

It is an arithmetic number, because the mean of its divisors is an integer number (28164213).

Almost surely, 2^823438848 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 823438848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1126568520).

823438848 is an abundant number, since it is smaller than the sum of its proper divisors (1429698192).

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

823438848 is a wasteful number, since it uses less digits than its factorization.

823438848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14547 (or 14531 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 48.

The square root of 823438848 is about 28695.6241960338. The cubic root of 823438848 is about 937.2967634822.

The spelling of 823438848 in words is "eight hundred twenty-three million, four hundred thirty-eight thousand, eight hundred forty-eight".