683249856 has 112 divisors (see below), whose sum is σ = 1922763744. Its totient is φ = 213385216.

The previous prime is 683249843. The next prime is 683249893. The reversal of 683249856 is 658942386.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 683249799 and 683249808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1151896 + ... + 1152488.

Almost surely, 2^683249856 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 683249856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (961381872).

683249856 is an abundant number, since it is smaller than the sum of its proper divisors (1239513888).

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

683249856 is a wasteful number, since it uses less digits than its factorization.

683249856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978 (or 968 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 683249856 is about 26139.0484907160. The cubic root of 683249856 is about 880.7645971873.

The spelling of 683249856 in words is "six hundred eighty-three million, two hundred forty-nine thousand, eight hundred fifty-six".