16716861 has 20 divisors (see below), whose sum is σ = 28540512. Its totient is φ = 9552168.

The previous prime is 16716857. The next prime is 16716871. The reversal of 16716861 is 16861761.

It is not a de Polignac number, because 16716861 - 2² = 16716857 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16716811) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14175 + ... + 15308.

Almost surely, 2^16716861 is an apocalyptic number.

It is an amenable number.

16716861 is a deficient number, since it is larger than the sum of its proper divisors (11823651).

16716861 is an equidigital number, since it uses as much as digits as its factorization.

16716861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29502 (or 29493 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 16716861 is about 4088.6258082637. The cubic root of 16716861 is about 255.6926497423.

The spelling of 16716861 in words is "sixteen million, seven hundred sixteen thousand, eight hundred sixty-one".