16117983 has 12 divisors (see below), whose sum is σ = 26607568. Its totient is φ = 9210240.

The previous prime is 16117979. The next prime is 16117987. The reversal of 16117983 is 38971161.

It is an interprime number because it is at equal distance from previous prime (16117979) and next prime (16117987).

It is not a de Polignac number, because 16117983 - 2² = 16117979 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 (16117987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127858 + ... + 127983.

Almost surely, 2^16117983 is an apocalyptic number.

16117983 is a deficient number, since it is larger than the sum of its proper divisors (10489585).

16117983 is a wasteful number, since it uses less digits than its factorization.

16117983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255854 (or 255851 counting only the distinct ones).

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

The square root of 16117983 is about 4014.7207873026. The cubic root of 16117983 is about 252.6020657203.

The spelling of 16117983 in words is "sixteen million, one hundred seventeen thousand, nine hundred eighty-three".