16777201 has 4 divisors (see below), whose sum is σ = 19173952. Its totient is φ = 14380452.

The previous prime is 16777199. The next prime is 16777213. The reversal of 16777201 is 10277761.

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 16777201 - 2¹ = 16777199 is a prime.

It is a nialpdrome in base 8 and base 16.

It is not an unprimeable number, because it can be changed into a prime (16777291) 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, 1198365 + ... + 1198378.

It is an arithmetic number, because the mean of its divisors is an integer number (4793488).

Almost surely, 2^16777201 is an apocalyptic number.

It is an amenable number.

16777201 is a deficient number, since it is larger than the sum of its proper divisors (2396751).

16777201 is an equidigital number, since it uses as much as digits as its factorization.

16777201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396750.

The product of its (nonzero) digits is 4116, while the sum is 31.

The square root of 16777201 is about 4095.9981689449. The cubic root of 16777201 is about 255.9999237060. Note that the first 4 decimals are identical.

The spelling of 16777201 in words is "sixteen million, seven hundred seventy-seven thousand, two hundred one".