561922 has 8 divisors (see below), whose sum is σ = 847872. Its totient is φ = 279300.

The previous prime is 561917. The next prime is 561923. The reversal of 561922 is 229165.

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

It is an Ulam number.

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

561922 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 354 + ... + 1117.

It is an arithmetic number, because the mean of its divisors is an integer number (105984).

2⁵⁶¹⁹²² is an apocalyptic number.

561922 is a deficient number, since it is larger than the sum of its proper divisors (285950).

561922 is a wasteful number, since it uses less digits than its factorization.

561922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664.

The product of its digits is 1080, while the sum is 25.

The square root of 561922 is about 749.6145676279. The cubic root of 561922 is about 82.5198972516.

The spelling of 561922 in words is "five hundred sixty-one thousand, nine hundred twenty-two".