913228 has 6 divisors (see below), whose sum is σ = 1598156. Its totient is φ = 456612.

The previous prime is 913217. The next prime is 913247. The reversal of 913228 is 822319.

It is an Ulam 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, 114150 + ... + 114157.

2⁹¹³²²⁸ is an apocalyptic number.

It is an amenable number.

913228 is a deficient number, since it is larger than the sum of its proper divisors (684928).

913228 is a wasteful number, since it uses less digits than its factorization.

913228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228311 (or 228309 counting only the distinct ones).

The product of its digits is 864, while the sum is 25.

The square root of 913228 is about 955.6296353714. The cubic root of 913228 is about 97.0196580415.

Subtracting from 913228 its reverse (822319), we obtain a palindrome (90909).

The spelling of 913228 in words is "nine hundred thirteen thousand, two hundred twenty-eight".