16727947 has 2 divisors, whose sum is σ = 16727948. Its totient is φ = 16727946.

The previous prime is 16727939. The next prime is 16727981. The reversal of 16727947 is 74972761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16727947 - 2³ = 16727939 is a prime.

It is not a weakly prime, because it can be changed into another prime (16727917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8363973 + 8363974.

It is an arithmetic number, because the mean of its divisors is an integer number (8363974).

Almost surely, 2^16727947 is an apocalyptic number.

16727947 is a deficient number, since it is larger than the sum of its proper divisors (1).

16727947 is an equidigital number, since it uses as much as digits as its factorization.

16727947 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 43.

The square root of 16727947 is about 4089.9812958008. The cubic root of 16727947 is about 255.7491592019.

The spelling of 16727947 in words is "sixteen million, seven hundred twenty-seven thousand, nine hundred forty-seven".