16886897 has 4 divisors (see below), whose sum is σ = 17054196. Its totient is φ = 16719600.

The previous prime is 16886887. The next prime is 16886923. The reversal of 16886897 is 79868861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79868861 = 41 ⋅1948021.

It can be written as a sum of positive squares in 2 ways, for example, as 14167696 + 2719201 = 3764^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 16886897 - 2⁸ = 16886641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16886887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83498 + ... + 83699.

It is an arithmetic number, because the mean of its divisors is an integer number (4263549).

Almost surely, 2^16886897 is an apocalyptic number.

It is an amenable number.

16886897 is a deficient number, since it is larger than the sum of its proper divisors (167299).

16886897 is a wasteful number, since it uses less digits than its factorization.

16886897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167298.

The product of its digits is 1161216, while the sum is 53.

The square root of 16886897 is about 4109.3669828819. The cubic root of 16886897 is about 256.5566551272.

The spelling of 16886897 in words is "sixteen million, eight hundred eighty-six thousand, eight hundred ninety-seven".