16449427 has 2 divisors, whose sum is σ = 16449428. Its totient is φ = 16449426.

The previous prime is 16449403. The next prime is 16449449. The reversal of 16449427 is 72494461.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16449427 is a prime.

It is not a weakly prime, because it can be changed into another prime (16449457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8224713 + 8224714.

It is an arithmetic number, because the mean of its divisors is an integer number (8224714).

Almost surely, 2^16449427 is an apocalyptic number.

16449427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16449427 is an equidigital number, since it uses as much as digits as its factorization.

16449427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 37.

The square root of 16449427 is about 4055.7893189859. The cubic root of 16449427 is about 254.3218016037.

The spelling of 16449427 in words is "sixteen million, four hundred forty-nine thousand, four hundred twenty-seven".