813349 has 4 divisors (see below), whose sum is σ = 848736. Its totient is φ = 777964.

The previous prime is 813343. The next prime is 813361. The reversal of 813349 is 943318.

813349 = T₃₂ + T₃₃ + ... + T₁₆₉.

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, and also an emirpimes, since its reverse is a distinct semiprime: 943318 = 2 ⋅471659.

It is a cyclic number.

It is not a de Polignac number, because 813349 - 2⁷ = 813221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813343) 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, 17659 + ... + 17704.

It is an arithmetic number, because the mean of its divisors is an integer number (212184).

2⁸¹³³⁴⁹ is an apocalyptic number.

It is an amenable number.

813349 is a deficient number, since it is larger than the sum of its proper divisors (35387).

813349 is a wasteful number, since it uses less digits than its factorization.

813349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35386.

The product of its digits is 2592, while the sum is 28.

The square root of 813349 is about 901.8586363727. The cubic root of 813349 is about 93.3452691651.

The spelling of 813349 in words is "eight hundred thirteen thousand, three hundred forty-nine".