561006807 has 8 divisors (see below), whose sum is σ = 750563184. Its totient is φ = 372727488.

The previous prime is 561006799. The next prime is 561006821. The reversal of 561006807 is 708600165.

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

It is not a de Polignac number, because 561006807 - 2³ = 561006799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561006847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318238 + ... + 319995.

It is an arithmetic number, because the mean of its divisors is an integer number (93820398).

Almost surely, 2^561006807 is an apocalyptic number.

561006807 is a deficient number, since it is larger than the sum of its proper divisors (189556377).

561006807 is a wasteful number, since it uses less digits than its factorization.

561006807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638529.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 561006807 is about 23685.5822601008. The cubic root of 561006807 is about 824.7507331418.

The spelling of 561006807 in words is "five hundred sixty-one million, six thousand, eight hundred seven".