16427005 has 12 divisors (see below), whose sum is σ = 22931100. Its totient is φ = 11264064.

The previous prime is 16427003. The next prime is 16427011. The reversal of 16427005 is 50072461.

It can be written as a sum of positive squares in 2 ways, for example, as 5968249 + 10458756 = 2443^2 + 3234^2 .

It is not a de Polignac number, because 16427005 - 2¹ = 16427003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16427003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33280 + ... + 33769.

It is an arithmetic number, because the mean of its divisors is an integer number (1910925).

Almost surely, 2^16427005 is an apocalyptic number.

It is an amenable number.

16427005 is a deficient number, since it is larger than the sum of its proper divisors (6504095).

16427005 is an equidigital number, since it uses as much as digits as its factorization.

16427005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67068 (or 67061 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 16427005 is about 4053.0241795479. The cubic root of 16427005 is about 254.2061948138.

Adding to 16427005 its reverse (50072461), we get a palindrome (66499466).

The spelling of 16427005 in words is "sixteen million, four hundred twenty-seven thousand, five".