16873018 has 4 divisors (see below), whose sum is σ = 25309530. Its totient is φ = 8436508.

The previous prime is 16873013. The next prime is 16873019. The reversal of 16873018 is 81037861.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14876449 + 1996569 = 3857^2 + 1413^2 .

It is not an unprimeable number, because it can be changed into a prime (16873013) by changing a digit.

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, 4218253 + ... + 4218256.

Almost surely, 2^16873018 is an apocalyptic number.

16873018 is a deficient number, since it is larger than the sum of its proper divisors (8436512).

16873018 is an equidigital number, since it uses as much as digits as its factorization.

16873018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436511.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 16873018 is about 4107.6779328472. The cubic root of 16873018 is about 256.4863496163.

The spelling of 16873018 in words is "sixteen million, eight hundred seventy-three thousand, eighteen".