917216 has 12 divisors (see below), whose sum is σ = 1805832. Its totient is φ = 458592.

The previous prime is 917209. The next prime is 917219. The reversal of 917216 is 612719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (917219) by changing a digit.

917216 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 14300 + ... + 14363.

It is an arithmetic number, because the mean of its divisors is an integer number (150486).

2⁹¹⁷²¹⁶ is an apocalyptic number.

It is an amenable number.

917216 is a deficient number, since it is larger than the sum of its proper divisors (888616).

917216 is a wasteful number, since it uses less digits than its factorization.

917216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28673 (or 28665 counting only the distinct ones).

The product of its digits is 756, while the sum is 26.

The square root of 917216 is about 957.7139447664. The cubic root of 917216 is about 97.1606788855.

It can be divided in two parts, 91 and 7216, that multiplied together give a palindrome (656656).

The spelling of 917216 in words is "nine hundred seventeen thousand, two hundred sixteen".