683091931 has 4 divisors (see below), whose sum is σ = 695980512. Its totient is φ = 670203352.

The previous prime is 683091919. The next prime is 683091947. The reversal of 683091931 is 139190386.

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 683091931 - 2⁷ = 683091803 is a prime.

It is a super-2 number, since 2×683091931² = 933229172394617522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683091131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6444211 + ... + 6444316.

It is an arithmetic number, because the mean of its divisors is an integer number (173995128).

Almost surely, 2^683091931 is an apocalyptic number.

683091931 is a deficient number, since it is larger than the sum of its proper divisors (12888581).

683091931 is a wasteful number, since it uses less digits than its factorization.

683091931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12888580.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 683091931 is about 26136.0274525414. The cubic root of 683091931 is about 880.6967325715.

The spelling of 683091931 in words is "six hundred eighty-three million, ninety-one thousand, nine hundred thirty-one".