9220389 has 8 divisors (see below), whose sum is σ = 12342720. Its totient is φ = 6122496.

The previous prime is 9220369. The next prime is 9220399. The reversal of 9220389 is 9830229.

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

It is not a de Polignac number, because 9220389 - 2⁷ = 9220261 is a prime.

It is a super-2 number, since 2×9220389² = 170031146622642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9220369) 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, 5209 + ... + 6750.

It is an arithmetic number, because the mean of its divisors is an integer number (1542840).

Almost surely, 2^9220389 is an apocalyptic number.

It is an amenable number.

9220389 is a deficient number, since it is larger than the sum of its proper divisors (3122331).

9220389 is a wasteful number, since it uses less digits than its factorization.

9220389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12219.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 9220389 is about 3036.5093446258. The cubic root of 9220389 is about 209.6925887604.

The spelling of 9220389 in words is "nine million, two hundred twenty thousand, three hundred eighty-nine".