5711621 has 8 divisors (see below), whose sum is σ = 5829120. Its totient is φ = 5595408.

The previous prime is 5711603. The next prime is 5711623. The reversal of 5711621 is 1261175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5711621 - 2⁶ = 5711557 is a prime.

It is a super-2 number, since 2×5711621² = 65245228895282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5711623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15380 + ... + 15746.

It is an arithmetic number, because the mean of its divisors is an integer number (728640).

Almost surely, 2^5711621 is an apocalyptic number.

It is an amenable number.

5711621 is a deficient number, since it is larger than the sum of its proper divisors (117499).

5711621 is a wasteful number, since it uses less digits than its factorization.

5711621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its digits is 420, while the sum is 23.

The square root of 5711621 is about 2389.8997886941. The cubic root of 5711621 is about 178.7529127274.

Adding to 5711621 its reverse (1261175), we get a palindrome (6972796).

The spelling of 5711621 in words is "five million, seven hundred eleven thousand, six hundred twenty-one".