16973983 has 4 divisors (see below), whose sum is σ = 18279688. Its totient is φ = 15668280.

The previous prime is 16973969. The next prime is 16973987. The reversal of 16973983 is 38937961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38937961 = 109 ⋅357229.

It is a cyclic number.

It is not a de Polignac number, because 16973983 - 2²¹ = 14876831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16973987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652833 + ... + 652858.

It is an arithmetic number, because the mean of its divisors is an integer number (4569922).

Almost surely, 2^16973983 is an apocalyptic number.

16973983 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

16973983 is a deficient number, since it is larger than the sum of its proper divisors (1305705).

16973983 is a wasteful number, since it uses less digits than its factorization.

16973983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305704.

The product of its digits is 244944, while the sum is 46.

The square root of 16973983 is about 4119.9493928931. The cubic root of 16973983 is about 256.9969214406.

It can be divided in two parts, 16973 and 983, that added together give a square (17956 = 134²).

The spelling of 16973983 in words is "sixteen million, nine hundred seventy-three thousand, nine hundred eighty-three".