16894971 has 12 divisors (see below), whose sum is σ = 25688520. Its totient is φ = 10670400.

The previous prime is 16894967. The next prime is 16894973. The reversal of 16894971 is 17949861.

It is a happy number.

It is not a de Polignac number, because 16894971 - 2² = 16894967 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16894973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49230 + ... + 49571.

It is an arithmetic number, because the mean of its divisors is an integer number (2140710).

Almost surely, 2^16894971 is an apocalyptic number.

16894971 is a deficient number, since it is larger than the sum of its proper divisors (8793549).

16894971 is a wasteful number, since it uses less digits than its factorization.

16894971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98826 (or 98823 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 16894971 is about 4110.3492552337. The cubic root of 16894971 is about 256.5975370881.

The spelling of 16894971 in words is "sixteen million, eight hundred ninety-four thousand, nine hundred seventy-one".