16279423 has 4 divisors (see below), whose sum is σ = 16987248. Its totient is φ = 15571600.

The previous prime is 16279399. The next prime is 16279429. The reversal of 16279423 is 32497261.

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 16279423 - 2⁵ = 16279391 is a prime.

It is a super-2 number, since 2×16279423² = 530039226425858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16279429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353878 + ... + 353923.

It is an arithmetic number, because the mean of its divisors is an integer number (4246812).

Almost surely, 2^16279423 is an apocalyptic number.

16279423 is a deficient number, since it is larger than the sum of its proper divisors (707825).

16279423 is an equidigital number, since it uses as much as digits as its factorization.

16279423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707824.

The product of its digits is 18144, while the sum is 34.

The square root of 16279423 is about 4034.7766976625. The cubic root of 16279423 is about 253.4426315464.

The spelling of 16279423 in words is "sixteen million, two hundred seventy-nine thousand, four hundred twenty-three".