6311641 has 12 divisors (see below), whose sum is σ = 7775028. Its totient is φ = 5091072.

The previous prime is 6311639. The next prime is 6311659. The reversal of 6311641 is 1461136.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1901641 + 4410000 = 1379^2 + 2100^2 .

It is not a de Polignac number, because 6311641 - 2¹ = 6311639 is a prime.

It is a super-2 number, since 2×6311641² = 79673624225762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6311441) 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 11 ways as a sum of consecutive naturals, for example, 2956 + ... + 4621.

It is an arithmetic number, because the mean of its divisors is an integer number (647919).

Almost surely, 2^6311641 is an apocalyptic number.

It is an amenable number.

6311641 is a deficient number, since it is larger than the sum of its proper divisors (1463387).

6311641 is a wasteful number, since it uses less digits than its factorization.

6311641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7608 (or 7601 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 6311641 is about 2512.2979520750. The cubic root of 6311641 is about 184.8051613190.

Adding to 6311641 its reverse (1461136), we get a palindrome (7772777).

The spelling of 6311641 in words is "six million, three hundred eleven thousand, six hundred forty-one".