9166820 has 24 divisors (see below), whose sum is σ = 20731704. Its totient is φ = 3384576.

The previous prime is 9166819. The next prime is 9166823. The reversal of 9166820 is 286619.

It can be written as a sum of positive squares in 4 ways, for example, as 369664 + 8797156 = 608^2 + 2966^2 .

It is not an unprimeable number, because it can be changed into a prime (9166823) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17369 + ... + 17888.

It is an arithmetic number, because the mean of its divisors is an integer number (863821).

Almost surely, 2^9166820 is an apocalyptic number.

It is an amenable number.

9166820 is an abundant number, since it is smaller than the sum of its proper divisors (11564884).

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

9166820 is a wasteful number, since it uses less digits than its factorization.

9166820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35279 (or 35277 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 9166820 is about 3027.6756761582. The cubic root of 9166820 is about 209.2857061873.

The spelling of 9166820 in words is "nine million, one hundred sixty-six thousand, eight hundred twenty".