16716986 has 16 divisors (see below), whose sum is σ = 29459808. Its totient is φ = 7014000.

The previous prime is 16716983. The next prime is 16716991. The reversal of 16716986 is 68961761.

It is not an unprimeable number, because it can be changed into a prime (16716983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28940 + ... + 29511.

It is an arithmetic number, because the mean of its divisors is an integer number (1841238).

Almost surely, 2^16716986 is an apocalyptic number.

16716986 is a deficient number, since it is larger than the sum of its proper divisors (12742822).

16716986 is a wasteful number, since it uses less digits than its factorization.

16716986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58477.

The product of its digits is 108864, while the sum is 44.

The square root of 16716986 is about 4088.6410945447. The cubic root of 16716986 is about 255.6932870530.

The spelling of 16716986 in words is "sixteen million, seven hundred sixteen thousand, nine hundred eighty-six".