9201816 has 128 divisors (see below), whose sum is σ = 28728000. Its totient is φ = 2709504.

The previous prime is 9201779. The next prime is 9201821. The reversal of 9201816 is 6181029.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9201816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81376 + ... + 81488.

Almost surely, 2^9201816 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 9201816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14364000).

9201816 is an abundant number, since it is smaller than the sum of its proper divisors (19526184).

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

9201816 is a wasteful number, since it uses less digits than its factorization.

9201816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 9201816 is about 3033.4495215843. The cubic root of 9201816 is about 209.5516967144.

The spelling of 9201816 in words is "nine million, two hundred one thousand, eight hundred sixteen".