16997347 has 8 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 16759680.

The previous prime is 16997333. The next prime is 16997353. The reversal of 16997347 is 74379961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16997347 - 2¹¹ = 16995299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16997297 and 16997306.

It is not an unprimeable number, because it can be changed into a prime (16997327) 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 7 ways as a sum of consecutive naturals, for example, 39222 + ... + 39652.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^16997347 is an apocalyptic number.

16997347 is a deficient number, since it is larger than the sum of its proper divisors (239453).

16997347 is a wasteful number, since it uses less digits than its factorization.

16997347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893.

The product of its digits is 285768, while the sum is 46.

The square root of 16997347 is about 4122.7838895581. The cubic root of 16997347 is about 257.1147826640.

The spelling of 16997347 in words is "sixteen million, nine hundred ninety-seven thousand, three hundred forty-seven".