16467997 has 32 divisors (see below), whose sum is σ = 21416192. Its totient is φ = 12317184.

The previous prime is 16467991. The next prime is 16468013. The reversal of 16467997 is 79976461.

It is a cyclic number.

It is not a de Polignac number, because 16467997 - 2¹¹ = 16465949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16467997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16467991) 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 31 ways as a sum of consecutive naturals, for example, 225553 + ... + 225625.

It is an arithmetic number, because the mean of its divisors is an integer number (669256).

Almost surely, 2^16467997 is an apocalyptic number.

It is an amenable number.

16467997 is a deficient number, since it is larger than the sum of its proper divisors (4948195).

16467997 is a wasteful number, since it uses less digits than its factorization.

16467997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197.

The product of its digits is 571536, while the sum is 49.

The square root of 16467997 is about 4058.0779933363. The cubic root of 16467997 is about 254.4174681533.

The spelling of 16467997 in words is "sixteen million, four hundred sixty-seven thousand, nine hundred ninety-seven".