16922047 has 4 divisors (see below), whose sum is σ = 17009920. Its totient is φ = 16834176.

The previous prime is 16922041. The next prime is 16922077. The reversal of 16922047 is 74022961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16922047 - 2³ = 16922039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16922041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43647 + ... + 44032.

It is an arithmetic number, because the mean of its divisors is an integer number (4252480).

Almost surely, 2^16922047 is an apocalyptic number.

16922047 is a deficient number, since it is larger than the sum of its proper divisors (87873).

16922047 is an equidigital number, since it uses as much as digits as its factorization.

16922047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87872.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 16922047 is about 4113.6415740801. The cubic root of 16922047 is about 256.7345389366.

The spelling of 16922047 in words is "sixteen million, nine hundred twenty-two thousand, forty-seven".