913222 has 4 divisors (see below), whose sum is σ = 1369836. Its totient is φ = 456610.

The previous prime is 913217. The next prime is 913247. The reversal of 913222 is 222319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 222319 = 19 ⋅11701.

It is a self number, because there is not a number n which added to its sum of digits gives 913222.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 228304 + ... + 228307.

It is an arithmetic number, because the mean of its divisors is an integer number (342459).

2⁹¹³²²² is an apocalyptic number.

913222 is a deficient number, since it is larger than the sum of its proper divisors (456614).

913222 is a wasteful number, since it uses less digits than its factorization.

913222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456613.

The product of its digits is 216, while the sum is 19.

The square root of 913222 is about 955.6264960747. The cubic root of 913222 is about 97.0194455648.

It can be divided in two parts, 9 and 13222, that added together give a palindrome (13231).

The spelling of 913222 in words is "nine hundred thirteen thousand, two hundred twenty-two".