561386 has 8 divisors (see below), whose sum is σ = 962400. Its totient is φ = 240588.

The previous prime is 561377. The next prime is 561389. The reversal of 561386 is 683165.

561386 is nontrivially palindromic in base 6.

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

561386 is a modest number, since divided by 1386 gives 56 as remainder.

It is not an unprimeable number, because it can be changed into a prime (561389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20036 + ... + 20063.

It is an arithmetic number, because the mean of its divisors is an integer number (120300).

2⁵⁶¹³⁸⁶ is an apocalyptic number.

561386 is a deficient number, since it is larger than the sum of its proper divisors (401014).

561386 is a wasteful number, since it uses less digits than its factorization.

561386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40108.

The product of its digits is 4320, while the sum is 29.

The square root of 561386 is about 749.2569652663. The cubic root of 561386 is about 82.4936511796.

The spelling of 561386 in words is "five hundred sixty-one thousand, three hundred eighty-six".