617243 has 4 divisors (see below), whose sum is σ = 673368. Its totient is φ = 561120.

The previous prime is 617237. The next prime is 617249. The reversal of 617243 is 342716.

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

It is an interprime number because it is at equal distance from previous prime (617237) and next prime (617249).

It is a cyclic number.

It is not a de Polignac number, because 617243 - 2¹⁰ = 616219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (617249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28046 + ... + 28067.

It is an arithmetic number, because the mean of its divisors is an integer number (168342).

2⁶¹⁷²⁴³ is an apocalyptic number.

617243 is a deficient number, since it is larger than the sum of its proper divisors (56125).

617243 is a wasteful number, since it uses less digits than its factorization.

617243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56124.

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

The square root of 617243 is about 785.6481400729. The cubic root of 617243 is about 85.1436095959.

Adding to 617243 its reverse (342716), we get a palindrome (959959).

The spelling of 617243 in words is "six hundred seventeen thousand, two hundred forty-three".