16947117 has 32 divisors (see below), whose sum is σ = 28047360. Its totient is φ = 10024560.

The previous prime is 16947089. The next prime is 16947127. The reversal of 16947117 is 71174961.

It is not a de Polignac number, because 16947117 - 2⁶ = 16947053 is a prime.

It is a super-2 number, since 2×16947117² = 574409549223378, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16947127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12108 + ... + 13434.

It is an arithmetic number, because the mean of its divisors is an integer number (876480).

Almost surely, 2^16947117 is an apocalyptic number.

It is an amenable number.

16947117 is a deficient number, since it is larger than the sum of its proper divisors (11100243).

16947117 is a wasteful number, since it uses less digits than its factorization.

16947117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1384 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The square root of 16947117 is about 4116.6876247780. The cubic root of 16947117 is about 256.8612603872.

The spelling of 16947117 in words is "sixteen million, nine hundred forty-seven thousand, one hundred seventeen".