16406323 has 2 divisors, whose sum is σ = 16406324. Its totient is φ = 16406322.

The previous prime is 16406317. The next prime is 16406363. The reversal of 16406323 is 32360461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16406323 - 2⁹ = 16405811 is a prime.

It is not a weakly prime, because it can be changed into another prime (16406363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8203161 + 8203162.

It is an arithmetic number, because the mean of its divisors is an integer number (8203162).

Almost surely, 2^16406323 is an apocalyptic number.

16406323 is a deficient number, since it is larger than the sum of its proper divisors (1).

16406323 is an equidigital number, since it uses as much as digits as its factorization.

16406323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 16406323 is about 4050.4719478105. The cubic root of 16406323 is about 254.0994660765.

Adding to 16406323 its reverse (32360461), we get a palindrome (48766784).

The spelling of 16406323 in words is "sixteen million, four hundred six thousand, three hundred twenty-three".