16171983 has 12 divisors (see below), whose sum is σ = 24589240. Its totient is φ = 10213776.

The previous prime is 16171973. The next prime is 16172017. The reversal of 16171983 is 38917161.

It is not a de Polignac number, because 16171983 - 2⁵ = 16171951 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 (16171963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47116 + ... + 47457.

Almost surely, 2^16171983 is an apocalyptic number.

16171983 is a deficient number, since it is larger than the sum of its proper divisors (8417257).

16171983 is a wasteful number, since it uses less digits than its factorization.

16171983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94598 (or 94595 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 16171983 is about 4021.4404135832. The cubic root of 16171983 is about 252.8838484263.

It can be divided in two parts, 1617 and 1983, that added together give a square (3600 = 60²).

The spelling of 16171983 in words is "sixteen million, one hundred seventy-one thousand, nine hundred eighty-three".