5641641 has 12 divisors (see below), whose sum is σ = 8348340. Its totient is φ = 3669120.

The previous prime is 5641633. The next prime is 5641661. The reversal of 5641641 is 1461465.

It can be written as a sum of positive squares in 2 ways, for example, as 1625625 + 4016016 = 1275^2 + 2004^2 .

It is not a de Polignac number, because 5641641 - 2³ = 5641633 is a prime.

It is a super-2 number, since 2×5641641² = 63656226345762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5641661) 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, 7276 + ... + 8013.

It is an arithmetic number, because the mean of its divisors is an integer number (695695).

Almost surely, 2^5641641 is an apocalyptic number.

It is an amenable number.

5641641 is a deficient number, since it is larger than the sum of its proper divisors (2706699).

5641641 is a wasteful number, since it uses less digits than its factorization.

5641641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15336 (or 15333 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 5641641 is about 2375.2138851059. The cubic root of 5641641 is about 178.0198711141.

The spelling of 5641641 in words is "five million, six hundred forty-one thousand, six hundred forty-one".