16980971 has 8 divisors (see below), whose sum is σ = 19653120. Its totient is φ = 14370408.

The previous prime is 16980941. The next prime is 16980983. The reversal of 16980971 is 17908961.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 16980971 - 2⁶ = 16980907 is a prime.

It is a super-2 number, since 2×16980971² = 576706752205682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16980941) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 14801 + ... + 15906.

It is an arithmetic number, because the mean of its divisors is an integer number (2456640).

Almost surely, 2^16980971 is an apocalyptic number.

16980971 is a deficient number, since it is larger than the sum of its proper divisors (2672149).

16980971 is an equidigital number, since it uses as much as digits as its factorization.

16980971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30793.

The product of its (nonzero) digits is 27216, while the sum is 41.

The square root of 16980971 is about 4120.7973742954. The cubic root of 16980971 is about 257.0321841933.

The spelling of 16980971 in words is "sixteen million, nine hundred eighty thousand, nine hundred seventy-one".