9213912 has 80 divisors (see below), whose sum is σ = 26353800. Its totient is φ = 3006720.

The previous prime is 9213871. The next prime is 9213923. The reversal of 9213912 is 2193129.

9213912 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 38112 + ... + 38352.

Almost surely, 2^9213912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9213912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13176900).

9213912 is an abundant number, since it is smaller than the sum of its proper divisors (17139888).

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

9213912 is a wasteful number, since it uses less digits than its factorization.

9213912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 305 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 9213912 is about 3035.4426365853. The cubic root of 9213912 is about 209.6434766949.

The spelling of 9213912 in words is "nine million, two hundred thirteen thousand, nine hundred twelve".