16591423 has 8 divisors (see below), whose sum is σ = 17031168. Its totient is φ = 16155384.

The previous prime is 16591403. The next prime is 16591453. The reversal of 16591423 is 32419561.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16591423 - 2⁵ = 16591391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16591403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9690 + ... + 11272.

It is an arithmetic number, because the mean of its divisors is an integer number (2128896).

Almost surely, 2^16591423 is an apocalyptic number.

16591423 is a deficient number, since it is larger than the sum of its proper divisors (439745).

16591423 is a wasteful number, since it uses less digits than its factorization.

16591423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853.

The product of its digits is 6480, while the sum is 31.

The square root of 16591423 is about 4073.2570505678. The cubic root of 16591423 is about 255.0514979933.

The spelling of 16591423 in words is "sixteen million, five hundred ninety-one thousand, four hundred twenty-three".