9132820 has 12 divisors (see below), whose sum is σ = 19178964. Its totient is φ = 3653120.

The previous prime is 9132803. The next prime is 9132829. The reversal of 9132820 is 282319.

It can be written as a sum of positive squares in 2 ways, for example, as 6370576 + 2762244 = 2524^2 + 1662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9132829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228301 + ... + 228340.

It is an arithmetic number, because the mean of its divisors is an integer number (1598247).

Almost surely, 2^9132820 is an apocalyptic number.

It is an amenable number.

9132820 is an abundant number, since it is smaller than the sum of its proper divisors (10046144).

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

9132820 is a wasteful number, since it uses less digits than its factorization.

9132820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456650 (or 456648 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 9132820 is about 3022.0555918116. The cubic root of 9132820 is about 209.0266367155.

The spelling of 9132820 in words is "nine million, one hundred thirty-two thousand, eight hundred twenty".