9221825 has 6 divisors (see below), whose sum is σ = 11435094. Its totient is φ = 7377440.

The previous prime is 9221819. The next prime is 9221831. The reversal of 9221825 is 5281229.

It is an interprime number because it is at equal distance from previous prime (9221819) and next prime (9221831).

It can be written as a sum of positive squares in 3 ways, for example, as 179776 + 9042049 = 424^2 + 3007^2 .

It is not a de Polignac number, because 9221825 - 2⁴ = 9221809 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 184412 + ... + 184461.

It is an arithmetic number, because the mean of its divisors is an integer number (1905849).

Almost surely, 2^9221825 is an apocalyptic number.

It is an amenable number.

9221825 is a deficient number, since it is larger than the sum of its proper divisors (2213269).

9221825 is a wasteful number, since it uses less digits than its factorization.

9221825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368883 (or 368878 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 9221825 is about 3036.7457911389. The cubic root of 9221825 is about 209.7034741625.

The spelling of 9221825 in words is "nine million, two hundred twenty-one thousand, eight hundred twenty-five".