16427201 has 6 divisors (see below), whose sum is σ = 19109250. Its totient is φ = 14080416.

The previous prime is 16427171. The next prime is 16427209. The reversal of 16427201 is 10272461.

16427201 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 16200625 + 226576 = 4025^2 + 476^2 .

It is not a de Polignac number, because 16427201 - 2¹⁴ = 16410817 is a prime.

It is a Duffinian number.

16427201 is strictly pandigital in base 8.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16427209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 167576 + ... + 167673.

It is an arithmetic number, because the mean of its divisors is an integer number (3184875).

Almost surely, 2^16427201 is an apocalyptic number.

It is an amenable number.

16427201 is a deficient number, since it is larger than the sum of its proper divisors (2682049).

16427201 is an equidigital number, since it uses as much as digits as its factorization.

16427201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335263 (or 335256 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 16427201 is about 4053.0483589516. The cubic root of 16427201 is about 254.2072058363.

Adding to 16427201 its reverse (10272461), we get a palindrome (26699662).

The spelling of 16427201 in words is "sixteen million, four hundred twenty-seven thousand, two hundred one".