683919907 has 4 divisors (see below), whose sum is σ = 746094456. Its totient is φ = 621745360.

The previous prime is 683919883. The next prime is 683919941. The reversal of 683919907 is 709919386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 683919907 - 2⁷ = 683919779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683919107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31087258 + ... + 31087279.

It is an arithmetic number, because the mean of its divisors is an integer number (186523614).

Almost surely, 2^683919907 is an apocalyptic number.

683919907 is a deficient number, since it is larger than the sum of its proper divisors (62174549).

683919907 is a wasteful number, since it uses less digits than its factorization.

683919907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62174548.

The product of its (nonzero) digits is 734832, while the sum is 52.

The square root of 683919907 is about 26151.8624002192. The cubic root of 683919907 is about 881.0524198533.

The spelling of 683919907 in words is "six hundred eighty-three million, nine hundred nineteen thousand, nine hundred seven".