616423 has 4 divisors (see below), whose sum is σ = 643248. Its totient is φ = 589600.

The previous prime is 616411. The next prime is 616433. The reversal of 616423 is 324616.

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 616423 - 2⁵ = 616391 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 616394 and 616403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (616433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13378 + ... + 13423.

It is an arithmetic number, because the mean of its divisors is an integer number (160812).

2⁶¹⁶⁴²³ is an apocalyptic number.

616423 is a deficient number, since it is larger than the sum of its proper divisors (26825).

616423 is a wasteful number, since it uses less digits than its factorization.

616423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26824.

The product of its digits is 864, while the sum is 22.

The square root of 616423 is about 785.1261045208. The cubic root of 616423 is about 85.1058887954.

The spelling of 616423 in words is "six hundred sixteen thousand, four hundred twenty-three".