16971398 has 8 divisors (see below), whose sum is σ = 25628400. Its totient is φ = 8428600.

The previous prime is 16971379. The next prime is 16971403. The reversal of 16971398 is 89317961.

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

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 in 3 ways as a sum of consecutive naturals, for example, 28178 + ... + 28773.

It is an arithmetic number, because the mean of its divisors is an integer number (3203550).

Almost surely, 2^16971398 is an apocalyptic number.

16971398 is a deficient number, since it is larger than the sum of its proper divisors (8657002).

16971398 is a wasteful number, since it uses less digits than its factorization.

16971398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57102.

The product of its digits is 81648, while the sum is 44.

The square root of 16971398 is about 4119.6356635023. The cubic root of 16971398 is about 256.9838745957.

The spelling of 16971398 in words is "sixteen million, nine hundred seventy-one thousand, three hundred ninety-eight".