561974 has 16 divisors (see below), whose sum is σ = 973728. Its totient is φ = 238272.

The previous prime is 561973. The next prime is 561983. The reversal of 561974 is 479165.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 561974.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561973) 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, 1772 + ... + 2064.

It is an arithmetic number, because the mean of its divisors is an integer number (60858).

2⁵⁶¹⁹⁷⁴ is an apocalyptic number.

561974 is a deficient number, since it is larger than the sum of its proper divisors (411754).

561974 is a wasteful number, since it uses less digits than its factorization.

561974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its digits is 7560, while the sum is 32.

The square root of 561974 is about 749.6492513169. The cubic root of 561974 is about 82.5224426241.

The spelling of 561974 in words is "five hundred sixty-one thousand, nine hundred seventy-four".