930221 has 8 divisors (see below), whose sum is σ = 988320. Its totient is φ = 873072.

The previous prime is 930211. The next prime is 930229. The reversal of 930221 is 122039.

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

It is a cyclic number.

It is not a de Polignac number, because 930221 - 2⁶ = 930157 is a prime.

It is a super-2 number, since 2×930221² = 1730622217682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 930221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (930229) 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 7 ways as a sum of consecutive naturals, for example, 3146 + ... + 3428.

It is an arithmetic number, because the mean of its divisors is an integer number (123540).

2⁹³⁰²²¹ is an apocalyptic number.

It is an amenable number.

930221 is a deficient number, since it is larger than the sum of its proper divisors (58099).

930221 is a wasteful number, since it uses less digits than its factorization.

930221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 930221 is about 964.4796524551. The cubic root of 930221 is about 97.6177319861.

The spelling of 930221 in words is "nine hundred thirty thousand, two hundred twenty-one".