16997422 has 16 divisors (see below), whose sum is σ = 28405440. Its totient is φ = 7574112.

The previous prime is 16997417. The next prime is 16997429. The reversal of 16997422 is 22479961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16997429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10518 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (1775340).

Almost surely, 2^16997422 is an apocalyptic number.

16997422 is a deficient number, since it is larger than the sum of its proper divisors (11408018).

16997422 is a wasteful number, since it uses less digits than its factorization.

16997422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22587.

The product of its digits is 54432, while the sum is 40.

The square root of 16997422 is about 4122.7929853438. The cubic root of 16997422 is about 257.1151608324.

The spelling of 16997422 in words is "sixteen million, nine hundred ninety-seven thousand, four hundred twenty-two".