813343 has 2 divisors, whose sum is σ = 813344. Its totient is φ = 813342.

The previous prime is 813311. The next prime is 813361. The reversal of 813343 is 343318.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 813343 - 2⁵ = 813311 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (813383) 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 as a sum of consecutive naturals, namely, 406671 + 406672.

It is an arithmetic number, because the mean of its divisors is an integer number (406672).

2⁸¹³³⁴³ is an apocalyptic number.

813343 is a deficient number, since it is larger than the sum of its proper divisors (1).

813343 is an equidigital number, since it uses as much as digits as its factorization.

813343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 813343 is about 901.8553099029. The cubic root of 813343 is about 93.3450396315.

It can be divided in two parts, 813 and 343, that added together give a square (1156 = 34²).

The spelling of 813343 in words is "eight hundred thirteen thousand, three hundred forty-three".