16671267 has 6 divisors (see below), whose sum is σ = 24080732. Its totient is φ = 11114172.

The previous prime is 16671253. The next prime is 16671269. The reversal of 16671267 is 76217661.

It is not a de Polignac number, because 16671267 - 2¹⁰ = 16670243 is a prime.

It is a super-2 number, since 2×16671267² = 555862286770578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16671269) 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 5 ways as a sum of consecutive naturals, for example, 926173 + ... + 926190.

Almost surely, 2^16671267 is an apocalyptic number.

16671267 is a deficient number, since it is larger than the sum of its proper divisors (7409465).

16671267 is a wasteful number, since it uses less digits than its factorization.

16671267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852369 (or 1852366 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 16671267 is about 4083.0462892306. The cubic root of 16671267 is about 255.4599771614.

The spelling of 16671267 in words is "sixteen million, six hundred seventy-one thousand, two hundred sixty-seven".