813338 has 8 divisors (see below), whose sum is σ = 1243188. Its totient is φ = 398944.

The previous prime is 813311. The next prime is 813343. The reversal of 813338 is 833318.

It can be written as a sum of positive squares in 2 ways, for example, as 786769 + 26569 = 887^2 + 163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3731 + ... + 3942.

2⁸¹³³³⁸ is an apocalyptic number.

813338 is a deficient number, since it is larger than the sum of its proper divisors (429850).

813338 is a wasteful number, since it uses less digits than its factorization.

813338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728.

The product of its digits is 1728, while the sum is 26.

The square root of 813338 is about 901.8525378353. The cubic root of 813338 is about 93.3448483525.

The spelling of 813338 in words is "eight hundred thirteen thousand, three hundred thirty-eight".