5231839 has 4 divisors (see below), whose sum is σ = 5400640. Its totient is φ = 5063040.

The previous prime is 5231827. The next prime is 5231843. The reversal of 5231839 is 9381325.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5231839 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 168769 = 5231839 / (5 + 2 + 3 + 1 + 8 + 3 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5231839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5237839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84354 + ... + 84415.

It is an arithmetic number, because the mean of its divisors is an integer number (1350160).

Almost surely, 2^5231839 is an apocalyptic number.

5231839 is a deficient number, since it is larger than the sum of its proper divisors (168801).

5231839 is a wasteful number, since it uses less digits than its factorization.

5231839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168800.

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

The square root of 5231839 is about 2287.3213591448. The cubic root of 5231839 is about 173.6006939845.

It can be divided in two parts, 52318 and 39, that multiplied together give a palindrome (2040402).

The spelling of 5231839 in words is "five million, two hundred thirty-one thousand, eight hundred thirty-nine".