9221365 has 16 divisors (see below), whose sum is σ = 11764800. Its totient is φ = 6918912.

The previous prime is 9221357. The next prime is 9221371. The reversal of 9221365 is 5631229.

9221365 = 226² + 227² + ... + 339².

9221365 is a nontrivial binomial coefficient, being equal to C(4295, 2).

It is a cyclic number.

It is not a de Polignac number, because 9221365 - 2³ = 9221357 is a prime.

9221365 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10306 + ... + 11164.

It is an arithmetic number, because the mean of its divisors is an integer number (735300).

Almost surely, 2^9221365 is an apocalyptic number.

9221365 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

9221365 is the 4294-th triangular number.

9221365 is the 1432-nd centered nonagonal number.

It is an amenable number.

9221365 is a deficient number, since it is larger than the sum of its proper divisors (2543435).

9221365 is a wasteful number, since it uses less digits than its factorization.

9221365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996.

The product of its digits is 3240, while the sum is 28.

The square root of 9221365 is about 3036.6700512239. The cubic root of 9221365 is about 209.6999873183.

The spelling of 9221365 in words is "nine million, two hundred twenty-one thousand, three hundred sixty-five".