16679971 has 24 divisors (see below), whose sum is σ = 21450240. Its totient is φ = 12690480.

The previous prime is 16679951. The next prime is 16679977. The reversal of 16679971 is 17997661.

16679971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 16679971 - 2⁵ = 16679939 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16679977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39600 + ... + 40018.

It is an arithmetic number, because the mean of its divisors is an integer number (893760).

Almost surely, 2^16679971 is an apocalyptic number.

16679971 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

16679971 is a deficient number, since it is larger than the sum of its proper divisors (4770269).

16679971 is a wasteful number, since it uses less digits than its factorization.

16679971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 484 counting only the distinct ones).

The product of its digits is 142884, while the sum is 46.

The square root of 16679971 is about 4084.1120209906. The cubic root of 16679971 is about 255.5044276279.

The spelling of 16679971 in words is "sixteen million, six hundred seventy-nine thousand, nine hundred seventy-one".