16742447 has 2 divisors, whose sum is σ = 16742448. Its totient is φ = 16742446.

The previous prime is 16742443. The next prime is 16742461. The reversal of 16742447 is 74424761.

It is a weak prime.

It is an emirp because it is prime and its reverse (74424761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16742447 - 2² = 16742443 is a 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 (16742441) 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, 8371223 + 8371224.

It is an arithmetic number, because the mean of its divisors is an integer number (8371224).

Almost surely, 2^16742447 is an apocalyptic number.

16742447 is a deficient number, since it is larger than the sum of its proper divisors (1).

16742447 is an equidigital number, since it uses as much as digits as its factorization.

16742447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 35.

The square root of 16742447 is about 4091.7535360772. The cubic root of 16742447 is about 255.8230334165.

The spelling of 16742447 in words is "sixteen million, seven hundred forty-two thousand, four hundred forty-seven".