561707 has 4 divisors (see below), whose sum is σ = 563736. Its totient is φ = 559680.

The previous prime is 561703. The next prime is 561713. The reversal of 561707 is 707165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561707 - 2² = 561703 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561703) 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, 518 + ... + 1179.

It is an arithmetic number, because the mean of its divisors is an integer number (140934).

2⁵⁶¹⁷⁰⁷ is an apocalyptic number.

561707 is a deficient number, since it is larger than the sum of its proper divisors (2029).

561707 is a wasteful number, since it uses less digits than its factorization.

561707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028.

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

The square root of 561707 is about 749.4711468762. The cubic root of 561707 is about 82.5093714484.

The spelling of 561707 in words is "five hundred sixty-one thousand, seven hundred seven".