16971466 has 4 divisors (see below), whose sum is σ = 25457202. Its totient is φ = 8485732.

The previous prime is 16971433. The next prime is 16971469. The reversal of 16971466 is 66417961.

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

It can be written as a sum of positive squares in only one way, i.e., 14784025 + 2187441 = 3845^2 + 1479^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (16971469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4242865 + ... + 4242868.

Almost surely, 2^16971466 is an apocalyptic number.

16971466 is a deficient number, since it is larger than the sum of its proper divisors (8485736).

16971466 is an equidigital number, since it uses as much as digits as its factorization.

16971466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8485735.

The product of its digits is 54432, while the sum is 40.

The square root of 16971466 is about 4119.6439166510. The cubic root of 16971466 is about 256.9842178179.

The spelling of 16971466 in words is "sixteen million, nine hundred seventy-one thousand, four hundred sixty-six".