16984143 has 24 divisors (see below), whose sum is σ = 27930240. Its totient is φ = 9844560.

The previous prime is 16984141. The next prime is 16984151. The reversal of 16984143 is 34148961.

It is not a de Polignac number, because 16984143 - 2¹ = 16984141 is a prime.

It is a super-2 number, since 2×16984143² = 576922226888898, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16984098 and 16984107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16984141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1453 + ... + 6006.

It is an arithmetic number, because the mean of its divisors is an integer number (1163760).

Almost surely, 2^16984143 is an apocalyptic number.

16984143 is a deficient number, since it is larger than the sum of its proper divisors (10946097).

16984143 is a wasteful number, since it uses less digits than its factorization.

16984143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7499 (or 7496 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 16984143 is about 4121.1822332918. The cubic root of 16984143 is about 257.0481875052.

The spelling of 16984143 in words is "sixteen million, nine hundred eighty-four thousand, one hundred forty-three".