16678982 has 4 divisors (see below), whose sum is σ = 25018476. Its totient is φ = 8339490.

The previous prime is 16678957. The next prime is 16678997. The reversal of 16678982 is 28987661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28987661 = 53 ⋅546937.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4169744 + ... + 4169747.

It is an arithmetic number, because the mean of its divisors is an integer number (6254619).

Almost surely, 2^16678982 is an apocalyptic number.

16678982 is a deficient number, since it is larger than the sum of its proper divisors (8339494).

16678982 is an equidigital number, since it uses as much as digits as its factorization.

16678982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8339493.

The product of its digits is 290304, while the sum is 47.

The square root of 16678982 is about 4083.9909402446. The cubic root of 16678982 is about 255.4993776816.

The spelling of 16678982 in words is "sixteen million, six hundred seventy-eight thousand, nine hundred eighty-two".