561077 has 6 divisors (see below), whose sum is σ = 616854. Its totient is φ = 509960.

The previous prime is 561061. The next prime is 561079. The reversal of 561077 is 770165.

It can be written as a sum of positive squares in only one way, i.e., 421201 + 139876 = 649^2 + 374^2 .

It is not a de Polignac number, because 561077 - 2⁴ = 561061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2198 + ... + 2439.

It is an arithmetic number, because the mean of its divisors is an integer number (102809).

2⁵⁶¹⁰⁷⁷ is an apocalyptic number.

It is an amenable number.

561077 is a deficient number, since it is larger than the sum of its proper divisors (55777).

561077 is a wasteful number, since it uses less digits than its factorization.

561077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4659 (or 4648 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 561077 is about 749.0507325943. The cubic root of 561077 is about 82.4785129227.

The spelling of 561077 in words is "five hundred sixty-one thousand, seventy-seven".