16670971 has 8 divisors (see below), whose sum is σ = 17143280. Its totient is φ = 16202592.

The previous prime is 16670957. The next prime is 16670977. The reversal of 16670971 is 17907661.

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 16670971 - 2⁵ = 16670939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16670971.

It is not an unprimeable number, because it can be changed into a prime (16670977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9001 + ... + 10693.

It is an arithmetic number, because the mean of its divisors is an integer number (2142910).

Almost surely, 2^16670971 is an apocalyptic number.

16670971 is a deficient number, since it is larger than the sum of its proper divisors (472309).

16670971 is a wasteful number, since it uses less digits than its factorization.

16670971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1965.

The product of its (nonzero) digits is 15876, while the sum is 37.

The square root of 16670971 is about 4083.0100416237. The cubic root of 16670971 is about 255.4584652467.

The spelling of 16670971 in words is "sixteen million, six hundred seventy thousand, nine hundred seventy-one".