683445747 has 16 divisors (see below), whose sum is σ = 995991552. Its totient is φ = 414994560.

The previous prime is 683445743. The next prime is 683445767. The reversal of 683445747 is 747544386.

It is a happy number.

It is not a de Polignac number, because 683445747 - 2² = 683445743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 683445696 and 683445705.

It is not an unprimeable number, because it can be changed into a prime (683445743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214563 + ... + 217724.

It is an arithmetic number, because the mean of its divisors is an integer number (62249472).

Almost surely, 2^683445747 is an apocalyptic number.

683445747 is a deficient number, since it is larger than the sum of its proper divisors (312545805).

683445747 is a wasteful number, since it uses less digits than its factorization.

683445747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432338.

The product of its digits is 2257920, while the sum is 48.

The square root of 683445747 is about 26142.7953172571. The cubic root of 683445747 is about 880.8487622845.

The spelling of 683445747 in words is "six hundred eighty-three million, four hundred forty-five thousand, seven hundred forty-seven".