16983855 has 24 divisors (see below), whose sum is σ = 33644832. Its totient is φ = 7763904.

The previous prime is 16983847. The next prime is 16983859. The reversal of 16983855 is 55838961.

It is not a de Polignac number, because 16983855 - 2³ = 16983847 is a prime.

It is a super-2 number, since 2×16983855² = 576902661322050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 16983855.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16983859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26644 + ... + 27273.

It is an arithmetic number, because the mean of its divisors is an integer number (1401868).

Almost surely, 2^16983855 is an apocalyptic number.

16983855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16983855 is a deficient number, since it is larger than the sum of its proper divisors (16660977).

16983855 is a wasteful number, since it uses less digits than its factorization.

16983855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53935 (or 53932 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 16983855 is about 4121.1472917138. The cubic root of 16983855 is about 257.0467345755.

The spelling of 16983855 in words is "sixteen million, nine hundred eighty-three thousand, eight hundred fifty-five".