5239431 has 16 divisors (see below), whose sum is σ = 7953120. Its totient is φ = 3407040.

The previous prime is 5239427. The next prime is 5239433. The reversal of 5239431 is 1349325.

It is not a de Polignac number, because 5239431 - 2² = 5239427 is a prime.

It is a super-2 number, since 2×5239431² = 54903274407522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

5239431 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 5239395 and 5239404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5239433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260 + ... + 3473.

It is an arithmetic number, because the mean of its divisors is an integer number (497070).

Almost surely, 2^5239431 is an apocalyptic number.

5239431 is a deficient number, since it is larger than the sum of its proper divisors (2713689).

5239431 is a wasteful number, since it uses less digits than its factorization.

5239431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783 (or 4777 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 5239431 is about 2288.9803406757. The cubic root of 5239431 is about 173.6846249229.

It can be divided in two parts, 52394 and 31, that added together give a palindrome (52425).

The spelling of 5239431 in words is "five million, two hundred thirty-nine thousand, four hundred thirty-one".