683877813 has 4 divisors (see below), whose sum is σ = 911837088. Its totient is φ = 455918540.

The previous prime is 683877809. The next prime is 683877829. The reversal of 683877813 is 318778386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 683877813 - 2² = 683877809 is a prime.

It is a super-2 number, since 2×683877813² = 935377726227325938, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (683877113) 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, 113979633 + ... + 113979638.

It is an arithmetic number, because the mean of its divisors is an integer number (227959272).

Almost surely, 2^683877813 is an apocalyptic number.

It is an amenable number.

683877813 is a deficient number, since it is larger than the sum of its proper divisors (227959275).

683877813 is a wasteful number, since it uses less digits than its factorization.

683877813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227959274.

The product of its digits is 1354752, while the sum is 51.

The square root of 683877813 is about 26151.0575885565. The cubic root of 683877813 is about 881.0343437691.

The spelling of 683877813 in words is "six hundred eighty-three million, eight hundred seventy-seven thousand, eight hundred thirteen".