5661386 has 8 divisors (see below), whose sum is σ = 8535780. Its totient is φ = 2816128.

The previous prime is 5661367. The next prime is 5661389. The reversal of 5661386 is 6831665.

It can be written as a sum of positive squares in 2 ways, for example, as 4906225 + 755161 = 2215^2 + 869^2 .

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

It is not an unprimeable number, because it can be changed into a prime (5661389) 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 3 ways as a sum of consecutive naturals, for example, 6791 + ... + 7578.

Almost surely, 2^5661386 is an apocalyptic number.

5661386 is a deficient number, since it is larger than the sum of its proper divisors (2874394).

5661386 is a wasteful number, since it uses less digits than its factorization.

5661386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14568.

The product of its digits is 25920, while the sum is 35.

The square root of 5661386 is about 2379.3667224705. The cubic root of 5661386 is about 178.2273113269.

The spelling of 5661386 in words is "five million, six hundred sixty-one thousand, three hundred eighty-six".