813683 has 4 divisors (see below), whose sum is σ = 876288. Its totient is φ = 751080.

The previous prime is 813677. The next prime is 813697. The reversal of 813683 is 386318.

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 813683 - 2⁸ = 813427 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 813683.

It is not an unprimeable number, because it can be changed into a prime (813613) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 31283 + ... + 31308.

It is an arithmetic number, because the mean of its divisors is an integer number (219072).

2⁸¹³⁶⁸³ is an apocalyptic number.

813683 is a deficient number, since it is larger than the sum of its proper divisors (62605).

813683 is a wasteful number, since it uses less digits than its factorization.

813683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62604.

The product of its digits is 3456, while the sum is 29.

The square root of 813683 is about 902.0437905113. The cubic root of 813683 is about 93.3580447605.

The spelling of 813683 in words is "eight hundred thirteen thousand, six hundred eighty-three".