16973538 has 8 divisors (see below), whose sum is σ = 33947088. Its totient is φ = 5657844.

The previous prime is 16973527. The next prime is 16973557. The reversal of 16973538 is 83537961.

It is a sphenic number, since it is the product of 3 distinct primes.

16973538 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 16973538.

It is an unprimeable number.

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, 1414456 + ... + 1414467.

It is an arithmetic number, because the mean of its divisors is an integer number (4243386).

Almost surely, 2^16973538 is an apocalyptic number.

16973538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16973538 is a wasteful number, since it uses less digits than its factorization.

16973538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828928.

The product of its digits is 136080, while the sum is 42.

The square root of 16973538 is about 4119.8953870214. The cubic root of 16973538 is about 256.9946755598.

The spelling of 16973538 in words is "sixteen million, nine hundred seventy-three thousand, five hundred thirty-eight".