561898712 has 16 divisors (see below), whose sum is σ = 1066254840. Its totient is φ = 277564096.

The previous prime is 561898709. The next prime is 561898747. The reversal of 561898712 is 217898165.

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, 422453 + ... + 423780.

Almost surely, 2^561898712 is an apocalyptic number.

It is an amenable number.

561898712 is a deficient number, since it is larger than the sum of its proper divisors (504356128).

561898712 is a wasteful number, since it uses less digits than its factorization.

561898712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846322 (or 846318 counting only the distinct ones).

The product of its digits is 241920, while the sum is 47.

The square root of 561898712 is about 23704.4027977926. The cubic root of 561898712 is about 825.1875726547.

The spelling of 561898712 in words is "five hundred sixty-one million, eight hundred ninety-eight thousand, seven hundred twelve".