5731405 has 4 divisors (see below), whose sum is σ = 6877692. Its totient is φ = 4585120.

The previous prime is 5731403. The next prime is 5731417. The reversal of 5731405 is 5041375.

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 2033476 + 3697929 = 1426^2 + 1923^2 .

It is not a de Polignac number, because 5731405 - 2¹ = 5731403 is a prime.

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 5731405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5731403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 573136 + ... + 573145.

It is an arithmetic number, because the mean of its divisors is an integer number (1719423).

Almost surely, 2^5731405 is an apocalyptic number.

It is an amenable number.

5731405 is a deficient number, since it is larger than the sum of its proper divisors (1146287).

5731405 is a wasteful number, since it uses less digits than its factorization.

5731405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146286.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 5731405 is about 2394.0352963146. The cubic root of 5731405 is about 178.9590639096.

The spelling of 5731405 in words is "five million, seven hundred thirty-one thousand, four hundred five".