683456448 has 112 divisors (see below), whose sum is σ = 1948200320. Its totient is φ = 210760704.

The previous prime is 683456447. The next prime is 683456483. The reversal of 683456448 is 844654386.

683456448 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 26143²-1.

It is a super-2 number, since 2×683456448² = 934225432625553408, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 683456397 and 683456406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683456447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154686 + ... + 159042.

Almost surely, 2^683456448 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 683456448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (974100160).

683456448 is an abundant number, since it is smaller than the sum of its proper divisors (1264743872).

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

683456448 is a wasteful number, since it uses less digits than its factorization.

683456448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4434 (or 4424 counting only the distinct ones).

The product of its digits is 2211840, while the sum is 48.

The square root of 683456448 is about 26142.9999808744. Note that the first 4 decimals coincide. The cubic root of 683456448 is about 880.8533595348.

The spelling of 683456448 in words is "six hundred eighty-three million, four hundred fifty-six thousand, four hundred forty-eight".