16987201 has 8 divisors (see below), whose sum is σ = 21178944. Its totient is φ = 13236720.

The previous prime is 16987183. The next prime is 16987249. The reversal of 16987201 is 10278961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16987201 - 2⁵ = 16987169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16987001) 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, 110230 + ... + 110383.

It is an arithmetic number, because the mean of its divisors is an integer number (2647368).

Almost surely, 2^16987201 is an apocalyptic number.

16987201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16987201 is a deficient number, since it is larger than the sum of its proper divisors (4191743).

16987201 is a wasteful number, since it uses less digits than its factorization.

16987201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220631.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 16987201 is about 4121.5532266368. The cubic root of 16987201 is about 257.0636137803.

The spelling of 16987201 in words is "sixteen million, nine hundred eighty-seven thousand, two hundred one".