5721611 has 8 divisors (see below), whose sum is σ = 6600960. Its totient is φ = 4857768.

The previous prime is 5721601. The next prime is 5721619. The reversal of 5721611 is 1161275.

5721611 is digitally balanced in base 3 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5721611 is a prime.

It is an Ulam number.

It is a Duffinian number.

5721611 is strictly pandigital in base 8.

It is not an unprimeable number, because it can be changed into a prime (5721619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3071 + ... + 4568.

It is an arithmetic number, because the mean of its divisors is an integer number (825120).

Almost surely, 2^5721611 is an apocalyptic number.

5721611 is a deficient number, since it is larger than the sum of its proper divisors (879349).

5721611 is a wasteful number, since it uses less digits than its factorization.

5721611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7753.

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

The square root of 5721611 is about 2391.9889213790. The cubic root of 5721611 is about 178.8570688845.

Adding to 5721611 its reverse (1161275), we get a palindrome (6882886).

The spelling of 5721611 in words is "five million, seven hundred twenty-one thousand, six hundred eleven".