16457447 has 2 divisors, whose sum is σ = 16457448. Its totient is φ = 16457446.

The previous prime is 16457431. The next prime is 16457449. The reversal of 16457447 is 74475461.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (74475461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16457447 - 2⁴ = 16457431 is a prime.

Together with 16457449, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16457447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16457449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8228723 + 8228724.

It is an arithmetic number, because the mean of its divisors is an integer number (8228724).

Almost surely, 2^16457447 is an apocalyptic number.

16457447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16457447 is an equidigital number, since it uses as much as digits as its factorization.

16457447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 38.

The square root of 16457447 is about 4056.7779086364. Note that the first 3 decimals coincide. The cubic root of 16457447 is about 254.3631268417.

The spelling of 16457447 in words is "sixteen million, four hundred fifty-seven thousand, four hundred forty-seven".