16986697 has 24 divisors (see below), whose sum is σ = 21397824. Its totient is φ = 13201344.

The previous prime is 16986661. The next prime is 16986707. The reversal of 16986697 is 79668961.

It is not a de Polignac number, because 16986697 - 2¹⁵ = 16953929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16986647) 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, 98103 + ... + 98275.

It is an arithmetic number, because the mean of its divisors is an integer number (891576).

Almost surely, 2^16986697 is an apocalyptic number.

It is an amenable number.

16986697 is a deficient number, since it is larger than the sum of its proper divisors (4411127).

16986697 is a wasteful number, since it uses less digits than its factorization.

16986697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289 (or 276 counting only the distinct ones).

The product of its digits is 979776, while the sum is 52.

The square root of 16986697 is about 4121.4920841850. The cubic root of 16986697 is about 257.0610714477.

The spelling of 16986697 in words is "sixteen million, nine hundred eighty-six thousand, six hundred ninety-seven".