561976 has 16 divisors (see below), whose sum is σ = 1062000. Its totient is φ = 278784.

The previous prime is 561973. The next prime is 561983. The reversal of 561976 is 679165.

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 3 ways as a sum of consecutive naturals, for example, 1416 + ... + 1768.

It is an arithmetic number, because the mean of its divisors is an integer number (66375).

2⁵⁶¹⁹⁷⁶ is an apocalyptic number.

It is an amenable number.

561976 is a deficient number, since it is larger than the sum of its proper divisors (500024).

561976 is a wasteful number, since it uses less digits than its factorization.

561976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 554 counting only the distinct ones).

The product of its digits is 11340, while the sum is 34.

The square root of 561976 is about 749.6505852729. The cubic root of 561976 is about 82.5225405199.

The spelling of 561976 in words is "five hundred sixty-one thousand, nine hundred seventy-six".