9163812 has 48 divisors (see below), whose sum is σ = 24657920. Its totient is φ = 2594592.

The previous prime is 9163789. The next prime is 9163813. The reversal of 9163812 is 2183619.

It is a self number, because there is not a number n which added to its sum of digits gives 9163812.

It is not an unprimeable number, because it can be changed into a prime (9163813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10239 + ... + 11097.

Almost surely, 2^9163812 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 9163812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12328960).

9163812 is an abundant number, since it is smaller than the sum of its proper divisors (15494108).

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

9163812 is a wasteful number, since it uses less digits than its factorization.

9163812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000 (or 998 counting only the distinct ones).

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

The square root of 9163812 is about 3027.1788847044. The cubic root of 9163812 is about 209.2628120148.

It can be divided in two parts, 91 and 63812, that added together give a triangular number (63903 = T₃₅₇).

The spelling of 9163812 in words is "nine million, one hundred sixty-three thousand, eight hundred twelve".