913243 has 4 divisors (see below), whose sum is σ = 930528. Its totient is φ = 895960.

The previous prime is 913217. The next prime is 913247. The reversal of 913243 is 342319.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-913243 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (913247) 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, 8563 + ... + 8668.

It is an arithmetic number, because the mean of its divisors is an integer number (232632).

2⁹¹³²⁴³ is an apocalyptic number.

913243 is a deficient number, since it is larger than the sum of its proper divisors (17285).

913243 is a wasteful number, since it uses less digits than its factorization.

913243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17284.

The product of its digits is 648, while the sum is 22.

The square root of 913243 is about 955.6374835679. The cubic root of 913243 is about 97.0201892294.

It can be divided in two parts, 913 and 243, that added together give a square (1156 = 34²).

The spelling of 913243 in words is "nine hundred thirteen thousand, two hundred forty-three".