16985201 has 4 divisors (see below), whose sum is σ = 17723712. Its totient is φ = 16246692.

The previous prime is 16985197. The next prime is 16985209. The reversal of 16985201 is 10258961.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 16985201 - 2² = 16985197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16985209) 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, 369221 + ... + 369266.

It is an arithmetic number, because the mean of its divisors is an integer number (4430928).

Almost surely, 2^16985201 is an apocalyptic number.

It is an amenable number.

16985201 is a deficient number, since it is larger than the sum of its proper divisors (738511).

16985201 is an equidigital number, since it uses as much as digits as its factorization.

16985201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738510.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 16985201 is about 4121.3105925179. The cubic root of 16985201 is about 257.0535248629.

The spelling of 16985201 in words is "sixteen million, nine hundred eighty-five thousand, two hundred one".