16906871 has 4 divisors (see below), whose sum is σ = 16926000. Its totient is φ = 16887744.

The previous prime is 16906867. The next prime is 16906907. The reversal of 16906871 is 17860961.

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 16906871 - 2² = 16906867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16906831) 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, 8171 + ... + 10028.

It is an arithmetic number, because the mean of its divisors is an integer number (4231500).

Almost surely, 2^16906871 is an apocalyptic number.

16906871 is a deficient number, since it is larger than the sum of its proper divisors (19129).

16906871 is an equidigital number, since it uses as much as digits as its factorization.

16906871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19128.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 16906871 is about 4111.7965659794. The cubic root of 16906871 is about 256.6577679117.

The spelling of 16906871 in words is "sixteen million, nine hundred six thousand, eight hundred seventy-one".