16683961 has 24 divisors (see below), whose sum is σ = 20520000. Its totient is φ = 13505184.

The previous prime is 16683949. The next prime is 16683967. The reversal of 16683961 is 16938661.

It is not a de Polignac number, because 16683961 - 2⁷ = 16683833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16683967) 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, 83740 + ... + 83938.

It is an arithmetic number, because the mean of its divisors is an integer number (855000).

Almost surely, 2^16683961 is an apocalyptic number.

It is an amenable number.

16683961 is a deficient number, since it is larger than the sum of its proper divisors (3836039).

16683961 is a wasteful number, since it uses less digits than its factorization.

16683961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 294 counting only the distinct ones).

The product of its digits is 46656, while the sum is 40.

The square root of 16683961 is about 4084.6004700582. The cubic root of 16683961 is about 255.5247989941.

The spelling of 16683961 in words is "sixteen million, six hundred eighty-three thousand, nine hundred sixty-one".