5711421 has 4 divisors (see below), whose sum is σ = 7615232. Its totient is φ = 3807612.

The previous prime is 5711417. The next prime is 5711437. The reversal of 5711421 is 1241175.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5711421 - 2² = 5711417 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5711401) 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, 951901 + ... + 951906.

It is an arithmetic number, because the mean of its divisors is an integer number (1903808).

Almost surely, 2^5711421 is an apocalyptic number.

It is an amenable number.

5711421 is a deficient number, since it is larger than the sum of its proper divisors (1903811).

5711421 is a wasteful number, since it uses less digits than its factorization.

5711421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1903810.

The product of its digits is 280, while the sum is 21.

The square root of 5711421 is about 2389.8579455692. The cubic root of 5711421 is about 178.7508262795.

Adding to 5711421 its reverse (1241175), we get a palindrome (6952596).

The spelling of 5711421 in words is "five million, seven hundred eleven thousand, four hundred twenty-one".