813353 has 4 divisors (see below), whose sum is σ = 821508. Its totient is φ = 805200.

The previous prime is 813343. The next prime is 813361. The reversal of 813353 is 353318.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 719104 + 94249 = 848^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 813353 - 2⁸ = 813097 is a prime.

It is a Duffinian number.

It is a Curzon 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, 3926 + ... + 4127.

It is an arithmetic number, because the mean of its divisors is an integer number (205377).

2⁸¹³³⁵³ is an apocalyptic number.

It is an amenable number.

813353 is a deficient number, since it is larger than the sum of its proper divisors (8155).

813353 is a wasteful number, since it uses less digits than its factorization.

813353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8154.

The product of its digits is 1080, while the sum is 23.

The square root of 813353 is about 901.8608540124. The cubic root of 813353 is about 93.3454221870.

The spelling of 813353 in words is "eight hundred thirteen thousand, three hundred fifty-three".