912213 has 12 divisors (see below), whose sum is σ = 1335360. Its totient is φ = 599976.

The previous prime is 912211. The next prime is 912217. The reversal of 912213 is 312219.

It is a happy number.

It is not a de Polignac number, because 912213 - 2¹ = 912211 is a prime.

912213 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 912213.

It is not an unprimeable number, because it can be changed into a prime (912211) 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 11 ways as a sum of consecutive naturals, for example, 70 + ... + 1352.

It is an arithmetic number, because the mean of its divisors is an integer number (111280).

2⁹¹²²¹³ is an apocalyptic number.

It is an amenable number.

912213 is a deficient number, since it is larger than the sum of its proper divisors (423147).

912213 is a wasteful number, since it uses less digits than its factorization.

912213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368 (or 1365 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 912213 is about 955.0984242475. The cubic root of 912213 is about 96.9837008076.

It can be divided in two parts, 91 and 2213, that added together give a square (2304 = 48²).

The spelling of 912213 in words is "nine hundred twelve thousand, two hundred thirteen".