9213816 has 16 divisors (see below), whose sum is σ = 23034600. Its totient is φ = 3071264.

The previous prime is 9213797. The next prime is 9213821. The reversal of 9213816 is 6183129.

9213816 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191931 + ... + 191978.

Almost surely, 2^9213816 is an apocalyptic number.

It is an amenable number.

9213816 is an abundant number, since it is smaller than the sum of its proper divisors (13820784).

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

9213816 is a wasteful number, since it uses less digits than its factorization.

9213816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383918 (or 383914 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 9213816 is about 3035.4268233644. The cubic root of 9213816 is about 209.6427485986.

The spelling of 9213816 in words is "nine million, two hundred thirteen thousand, eight hundred sixteen".