16996243 has 16 divisors (see below), whose sum is σ = 19855584. Its totient is φ = 14376960.

The previous prime is 16996219. The next prime is 16996253. The reversal of 16996243 is 34269961.

It is a cyclic number.

It is not a de Polignac number, because 16996243 - 2⁵ = 16996211 is a prime.

It is a super-2 number, since 2×16996243² = 577744552230098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16996196 and 16996205.

It is not an unprimeable number, because it can be changed into a prime (16996253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17671 + ... + 18607.

It is an arithmetic number, because the mean of its divisors is an integer number (1240974).

Almost surely, 2^16996243 is an apocalyptic number.

16996243 is a deficient number, since it is larger than the sum of its proper divisors (2859341).

16996243 is a wasteful number, since it uses less digits than its factorization.

16996243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062.

The product of its digits is 69984, while the sum is 40.

The square root of 16996243 is about 4122.6499972712. The cubic root of 16996243 is about 257.1092158959.

The spelling of 16996243 in words is "sixteen million, nine hundred ninety-six thousand, two hundred forty-three".