16941971 has 4 divisors (see below), whose sum is σ = 16957152. Its totient is φ = 16926792.

The previous prime is 16941943. The next prime is 16941973. The reversal of 16941971 is 17914961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16941971 - 2⁶ = 16941907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16941973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5771 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (4239288).

Almost surely, 2^16941971 is an apocalyptic number.

16941971 is a deficient number, since it is larger than the sum of its proper divisors (15181).

16941971 is a wasteful number, since it uses less digits than its factorization.

16941971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15180.

The product of its digits is 13608, while the sum is 38.

The square root of 16941971 is about 4116.0625602631. The cubic root of 16941971 is about 256.8352590746.

The spelling of 16941971 in words is "sixteen million, nine hundred forty-one thousand, nine hundred seventy-one".