16842047 has 2 divisors, whose sum is σ = 16842048. Its totient is φ = 16842046.

The previous prime is 16842043. The next prime is 16842061. The reversal of 16842047 is 74024861.

It is a weak prime.

It is an emirp because it is prime and its reverse (74024861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16842047 - 2² = 16842043 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16842041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8421023 + 8421024.

It is an arithmetic number, because the mean of its divisors is an integer number (8421024).

Almost surely, 2^16842047 is an apocalyptic number.

16842047 is a deficient number, since it is larger than the sum of its proper divisors (1).

16842047 is an equidigital number, since it uses as much as digits as its factorization.

16842047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 16842047 is about 4103.9063098468. The cubic root of 16842047 is about 256.3293236874.

The spelling of 16842047 in words is "sixteen million, eight hundred forty-two thousand, forty-seven".