9250221 has 8 divisors (see below), whose sum is σ = 12517984. Its totient is φ = 6074640.

The previous prime is 9250181. The next prime is 9250229. The reversal of 9250221 is 1220529.

9250221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9250221 - 2¹³ = 9242029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9250229) 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, 22810 + ... + 23211.

It is an arithmetic number, because the mean of its divisors is an integer number (1564748).

Almost surely, 2^9250221 is an apocalyptic number.

It is an amenable number.

9250221 is a deficient number, since it is larger than the sum of its proper divisors (3267763).

9250221 is a wasteful number, since it uses less digits than its factorization.

9250221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46091.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 9250221 is about 3041.4175971083. The cubic root of 9250221 is about 209.9184944471.

The spelling of 9250221 in words is "nine million, two hundred fifty thousand, two hundred twenty-one".