16971355 has 16 divisors (see below), whose sum is σ = 22503744. Its totient is φ = 12221440.

The previous prime is 16971349. The next prime is 16971373. The reversal of 16971355 is 55317961.

It is not a de Polignac number, because 16971355 - 2³ = 16971347 is a prime.

It is a Duffinian number.

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 15 ways as a sum of consecutive naturals, for example, 2386 + ... + 6295.

It is an arithmetic number, because the mean of its divisors is an integer number (1406484).

Almost surely, 2^16971355 is an apocalyptic number.

16971355 is a deficient number, since it is larger than the sum of its proper divisors (5532389).

16971355 is a wasteful number, since it uses less digits than its factorization.

16971355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726.

The product of its digits is 28350, while the sum is 37.

The square root of 16971355 is about 4119.6304445909. The cubic root of 16971355 is about 256.9836575577.

The spelling of 16971355 in words is "sixteen million, nine hundred seventy-one thousand, three hundred fifty-five".