913313 has 4 divisors (see below), whose sum is σ = 915588. Its totient is φ = 911040.

The previous prime is 913309. The next prime is 913321. The reversal of 913313 is 313319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313319 = 137 ⋅2287.

It can be written as a sum of positive squares in 2 ways, for example, as 117649 + 795664 = 343^2 + 892^2 .

It is a cyclic number.

It is not a de Polignac number, because 913313 - 2² = 913309 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 913313.

It is not an unprimeable number, because it can be changed into a prime (913373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356 + ... + 1397.

It is an arithmetic number, because the mean of its divisors is an integer number (228897).

2⁹¹³³¹³ is an apocalyptic number.

It is an amenable number.

913313 is a deficient number, since it is larger than the sum of its proper divisors (2275).

913313 is a wasteful number, since it uses less digits than its factorization.

913313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274.

The product of its digits is 243, while the sum is 20.

The square root of 913313 is about 955.6741076329. The cubic root of 913313 is about 97.0226680292.

The spelling of 913313 in words is "nine hundred thirteen thousand, three hundred thirteen".