16999983 has 128 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 7464960.

The previous prime is 16999963. The next prime is 16999999. The reversal of 16999983 is 38999961.

It is not a de Polignac number, because 16999983 - 2¹² = 16995887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16999903) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 459441 + ... + 459477.

It is an arithmetic number, because the mean of its divisors is an integer number (287280).

Almost surely, 2^16999983 is an apocalyptic number.

16999983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16999983 is an abundant number, since it is smaller than the sum of its proper divisors (19771857).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16999983 is a wasteful number, since it uses less digits than its factorization.

16999983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 88 counting only the distinct ones).

The product of its digits is 944784, while the sum is 54.

The square root of 16999983 is about 4123.1035640643. The cubic root of 16999983 is about 257.1280733564.

It can be divided in two parts, 16 and 999983, that added together give a palindrome (999999).

The spelling of 16999983 in words is "sixteen million, nine hundred ninety-nine thousand, nine hundred eighty-three".