561927 has 8 divisors (see below), whose sum is σ = 759040. Its totient is φ = 369720.

The previous prime is 561923. The next prime is 561931. The reversal of 561927 is 729165.

561927 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (561923) and next prime (561931).

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

It is not a de Polignac number, because 561927 - 2² = 561923 is a prime.

It is an Ulam number.

It is a Duffinian number.

561927 is strictly pandigital in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 561894 and 561903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 949 + ... + 1422.

It is an arithmetic number, because the mean of its divisors is an integer number (94880).

2⁵⁶¹⁹²⁷ is an apocalyptic number.

561927 is a deficient number, since it is larger than the sum of its proper divisors (197113).

561927 is a wasteful number, since it uses less digits than its factorization.

561927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2453.

The product of its digits is 3780, while the sum is 30.

The square root of 561927 is about 749.6179026678. The cubic root of 561927 is about 82.5201420058.

The spelling of 561927 in words is "five hundred sixty-one thousand, nine hundred twenty-seven".