608731 has 4 divisors (see below), whose sum is σ = 614232. Its totient is φ = 603232.

The previous prime is 608701. The next prime is 608737. The reversal of 608731 is 137806.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137806 = 2 ⋅68903.

It is a cyclic number.

It is not a de Polignac number, because 608731 - 2¹⁵ = 575963 is a prime.

It is a super-2 number, since 2×608731² = 741106860722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 608696 and 608705.

It is not an unprimeable number, because it can be changed into a prime (608737) 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, 2581 + ... + 2806.

It is an arithmetic number, because the mean of its divisors is an integer number (153558).

2⁶⁰⁸⁷³¹ is an apocalyptic number.

608731 is a deficient number, since it is larger than the sum of its proper divisors (5501).

608731 is a wasteful number, since it uses less digits than its factorization.

608731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 608731 is about 780.2121506360. The cubic root of 608731 is about 84.7504096998.

The spelling of 608731 in words is "six hundred eight thousand, seven hundred thirty-one".