16870207 has 4 divisors (see below), whose sum is σ = 16886016. Its totient is φ = 16854400.

The previous prime is 16870193. The next prime is 16870211. The reversal of 16870207 is 70207861.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16870207 - 2¹⁹ = 16345919 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16877207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6178 + ... + 8479.

It is an arithmetic number, because the mean of its divisors is an integer number (4221504).

Almost surely, 2^16870207 is an apocalyptic number.

16870207 is a deficient number, since it is larger than the sum of its proper divisors (15809).

16870207 is a wasteful number, since it uses less digits than its factorization.

16870207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15808.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 16870207 is about 4107.3357544764. The cubic root of 16870207 is about 256.4721055103.

The spelling of 16870207 in words is "sixteen million, eight hundred seventy thousand, two hundred seven".