16117984 has 24 divisors (see below), whose sum is σ = 32052888. Its totient is φ = 7977600.

The previous prime is 16117979. The next prime is 16117987. The reversal of 16117984 is 48971161.

16117984 = 470² + 471² + ... + 533².

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 739 + ... + 5725.

It is an arithmetic number, because the mean of its divisors is an integer number (1335537).

Almost surely, 2^16117984 is an apocalyptic number.

It is an amenable number.

16117984 is a deficient number, since it is larger than the sum of its proper divisors (15934904).

16117984 is a wasteful number, since it uses less digits than its factorization.

16117984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5098 (or 5090 counting only the distinct ones).

The product of its digits is 12096, while the sum is 37.

The square root of 16117984 is about 4014.7209118443. The cubic root of 16117984 is about 252.6020709444.

It can be divided in two parts, 161 and 17984, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 16117984 in words is "sixteen million, one hundred seventeen thousand, nine hundred eighty-four".