16423427 has 4 divisors (see below), whose sum is σ = 16491816. Its totient is φ = 16355040.

The previous prime is 16423399. The next prime is 16423439. The reversal of 16423427 is 72432461.

16423427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16423427 - 2⁸ = 16423171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16423427.

It is not an unprimeable number, because it can be changed into a prime (16423447) 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, 33833 + ... + 34314.

It is an arithmetic number, because the mean of its divisors is an integer number (4122954).

Almost surely, 2^16423427 is an apocalyptic number.

16423427 is a deficient number, since it is larger than the sum of its proper divisors (68389).

16423427 is an equidigital number, since it uses as much as digits as its factorization.

16423427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68388.

The product of its digits is 8064, while the sum is 29.

The square root of 16423427 is about 4052.5827567121. The cubic root of 16423427 is about 254.1877370809.

Adding to 16423427 its reverse (72432461), we get a palindrome (88855888).

The spelling of 16423427 in words is "sixteen million, four hundred twenty-three thousand, four hundred twenty-seven".