9220399 has 2 divisors, whose sum is σ = 9220400. Its totient is φ = 9220398.

The previous prime is 9220369. The next prime is 9220403. The reversal of 9220399 is 9930229.

9220399 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9220399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9220369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4610199 + 4610200.

It is an arithmetic number, because the mean of its divisors is an integer number (4610200).

Almost surely, 2^9220399 is an apocalyptic number.

9220399 is a deficient number, since it is larger than the sum of its proper divisors (1).

9220399 is an equidigital number, since it uses as much as digits as its factorization.

9220399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 9220399 is about 3036.5109912530. The cubic root of 9220399 is about 209.6926645679.

The spelling of 9220399 in words is "nine million, two hundred twenty thousand, three hundred ninety-nine".