561716286 has 8 divisors (see below), whose sum is σ = 1123432584. Its totient is φ = 187238760.

The previous prime is 561716273. The next prime is 561716297. The reversal of 561716286 is 682617165.

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

561716286 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46809685 + ... + 46809696.

It is an arithmetic number, because the mean of its divisors is an integer number (140429073).

Almost surely, 2^561716286 is an apocalyptic number.

561716286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561716286 is a wasteful number, since it uses less digits than its factorization.

561716286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93619386.

The product of its digits is 120960, while the sum is 42.

The square root of 561716286 is about 23700.5545504741. The cubic root of 561716286 is about 825.0982612071.

The spelling of 561716286 in words is "five hundred sixty-one million, seven hundred sixteen thousand, two hundred eighty-six".