5711239 has 4 divisors (see below), whose sum is σ = 5716080. Its totient is φ = 5706400.

The previous prime is 5711213. The next prime is 5711257. The reversal of 5711239 is 9321175.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5711239 - 2¹⁵ = 5678471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5711539) 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, 639 + ... + 3439.

It is an arithmetic number, because the mean of its divisors is an integer number (1429020).

Almost surely, 2^5711239 is an apocalyptic number.

5711239 is a deficient number, since it is larger than the sum of its proper divisors (4841).

5711239 is a wasteful number, since it uses less digits than its factorization.

5711239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4840.

The product of its digits is 1890, while the sum is 28.

The square root of 5711239 is about 2389.8198676888. The cubic root of 5711239 is about 178.7489275695.

The spelling of 5711239 in words is "five million, seven hundred eleven thousand, two hundred thirty-nine".