913212 has 18 divisors (see below), whose sum is σ = 2308488. Its totient is φ = 304392.

The previous prime is 913183. The next prime is 913217. The reversal of 913212 is 212319.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (913217) by changing a digit.

913212 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12648 + ... + 12719.

2⁹¹³²¹² is an apocalyptic number.

It is an amenable number.

913212 is an abundant number, since it is smaller than the sum of its proper divisors (1395276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

913212 is a wasteful number, since it uses less digits than its factorization.

913212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377 (or 25372 counting only the distinct ones).

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

The square root of 913212 is about 955.6212638907. The cubic root of 913212 is about 97.0190914347.

It can be divided in two parts, 91 and 3212, that multiplied together give a palindrome (292292).

The spelling of 913212 in words is "nine hundred thirteen thousand, two hundred twelve".