5239405 has 4 divisors (see below), whose sum is σ = 6287292. Its totient is φ = 4191520.

The previous prime is 5239397. The next prime is 5239411. The reversal of 5239405 is 5049325.

5239405 is nontrivially palindromic in base 12.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3636649 + 1602756 = 1907^2 + 1266^2 .

It is not a de Polignac number, because 5239405 - 2³ = 5239397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523936 + ... + 523945.

It is an arithmetic number, because the mean of its divisors is an integer number (1571823).

Almost surely, 2^5239405 is an apocalyptic number.

It is an amenable number.

5239405 is a deficient number, since it is larger than the sum of its proper divisors (1047887).

5239405 is a wasteful number, since it uses less digits than its factorization.

5239405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047886.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 5239405 is about 2288.9746612840. The cubic root of 5239405 is about 173.6843376266.

The spelling of 5239405 in words is "five million, two hundred thirty-nine thousand, four hundred five".