16223393 has 2 divisors, whose sum is σ = 16223394. Its totient is φ = 16223392.

The previous prime is 16223381. The next prime is 16223401. The reversal of 16223393 is 39332261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11102224 + 5121169 = 3332^2 + 2263^2 .

It is a cyclic number.

It is not a de Polignac number, because 16223393 - 2⁶ = 16223329 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (16223293) 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 as a sum of consecutive naturals, namely, 8111696 + 8111697.

It is an arithmetic number, because the mean of its divisors is an integer number (8111697).

Almost surely, 2^16223393 is an apocalyptic number.

It is an amenable number.

16223393 is a deficient number, since it is larger than the sum of its proper divisors (1).

16223393 is an equidigital number, since it uses as much as digits as its factorization.

16223393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 29.

The square root of 16223393 is about 4027.8273299634. The cubic root of 16223393 is about 253.1515337323.

The spelling of 16223393 in words is "sixteen million, two hundred twenty-three thousand, three hundred ninety-three".