9221750 has 16 divisors (see below), whose sum is σ = 17263584. Its totient is φ = 3688600.

The previous prime is 9221747. The next prime is 9221753. The reversal of 9221750 is 571229.

It is an interprime number because it is at equal distance from previous prime (9221747) and next prime (9221753).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9221753) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 18194 + ... + 18693.

It is an arithmetic number, because the mean of its divisors is an integer number (1078974).

Almost surely, 2^9221750 is an apocalyptic number.

9221750 is a deficient number, since it is larger than the sum of its proper divisors (8041834).

9221750 is a wasteful number, since it uses less digits than its factorization.

9221750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36904 (or 36894 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 9221750 is about 3036.7334423686. The cubic root of 9221750 is about 209.7029056632.

Adding to 9221750 its reverse (571229), we get a palindrome (9792979).

It can be divided in two parts, 92 and 21750, that multiplied together give a triangular number (2001000 = T₂₀₀₀).

The spelling of 9221750 in words is "nine million, two hundred twenty-one thousand, seven hundred fifty".