617423 has 4 divisors (see below), whose sum is σ = 653760. Its totient is φ = 581088.

The previous prime is 617411. The next prime is 617429. The reversal of 617423 is 324716.

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 617423 - 2⁶ = 617359 is a prime.

It is a super-2 number, since 2×617423² = 762422321858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617429) 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, 18143 + ... + 18176.

It is an arithmetic number, because the mean of its divisors is an integer number (163440).

2⁶¹⁷⁴²³ is an apocalyptic number.

617423 is a deficient number, since it is larger than the sum of its proper divisors (36337).

617423 is a wasteful number, since it uses less digits than its factorization.

617423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36336.

The product of its digits is 1008, while the sum is 23.

The square root of 617423 is about 785.7626868209. The cubic root of 617423 is about 85.1518852994.

The spelling of 617423 in words is "six hundred seventeen thousand, four hundred twenty-three".