16217667 has 12 divisors (see below), whose sum is σ = 23493184. Its totient is φ = 10780560.

The previous prime is 16217651. The next prime is 16217683. The reversal of 16217667 is 76671261.

It is an interprime number because it is at equal distance from previous prime (16217651) and next prime (16217683).

It is not a de Polignac number, because 16217667 - 2⁴ = 16217651 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (16217627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942 + ... + 5772.

Almost surely, 2^16217667 is an apocalyptic number.

16217667 is a deficient number, since it is larger than the sum of its proper divisors (7275517).

16217667 is a wasteful number, since it uses less digits than its factorization.

16217667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5210 (or 5207 counting only the distinct ones).

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

The square root of 16217667 is about 4027.1164621848. The cubic root of 16217667 is about 253.1217471919.

The spelling of 16217667 in words is "sixteen million, two hundred seventeen thousand, six hundred sixty-seven".