5661436 has 12 divisors (see below), whose sum is σ = 10808280. Its totient is φ = 2573360.

The previous prime is 5661421. The next prime is 5661451. The reversal of 5661436 is 6341665.

It is an interprime number because it is at equal distance from previous prime (5661421) and next prime (5661451).

It is a junction number, because it is equal to n+sod(n) for n = 5661398 and 5661407.

It is a congruent number.

It is an unprimeable number.

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, 64291 + ... + 64378.

It is an arithmetic number, because the mean of its divisors is an integer number (900690).

Almost surely, 2^5661436 is an apocalyptic number.

It is an amenable number.

5661436 is a deficient number, since it is larger than the sum of its proper divisors (5146844).

5661436 is a wasteful number, since it uses less digits than its factorization.

5661436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128684 (or 128682 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 5661436 is about 2379.3772294447. The cubic root of 5661436 is about 178.2278360122.

It can be divided in two parts, 566 and 1436, that added together give a palindrome (2002).

The spelling of 5661436 in words is "five million, six hundred sixty-one thousand, four hundred thirty-six".