16224473 has 2 divisors, whose sum is σ = 16224474. Its totient is φ = 16224472.

The previous prime is 16224451. The next prime is 16224493. The reversal of 16224473 is 37442261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16216729 + 7744 = 4027^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 16224473 - 2¹⁶ = 16158937 is a prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (16224493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8112236 + 8112237.

It is an arithmetic number, because the mean of its divisors is an integer number (8112237).

Almost surely, 2^16224473 is an apocalyptic number.

It is an amenable number.

16224473 is a deficient number, since it is larger than the sum of its proper divisors (1).

16224473 is an equidigital number, since it uses as much as digits as its factorization.

16224473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8064, while the sum is 29.

The square root of 16224473 is about 4027.9613950484. The cubic root of 16224473 is about 253.1571510855.

The spelling of 16224473 in words is "sixteen million, two hundred twenty-four thousand, four hundred seventy-three".