16648319 has 2 divisors, whose sum is σ = 16648320. Its totient is φ = 16648318.

The previous prime is 16648283. The next prime is 16648339. The reversal of 16648319 is 91384661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16648319 - 2¹² = 16644223 is a prime.

It is a super-2 number, since 2×16648319² = 554333051051522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16648339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8324159 + 8324160.

It is an arithmetic number, because the mean of its divisors is an integer number (8324160).

Almost surely, 2^16648319 is an apocalyptic number.

16648319 is a deficient number, since it is larger than the sum of its proper divisors (1).

16648319 is an equidigital number, since it uses as much as digits as its factorization.

16648319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 38.

The square root of 16648319 is about 4080.2351647914. The cubic root of 16648319 is about 255.3427097809.

The spelling of 16648319 in words is "sixteen million, six hundred forty-eight thousand, three hundred nineteen".