561282847 has 2 divisors, whose sum is σ = 561282848. Its totient is φ = 561282846.

The previous prime is 561282817. The next prime is 561282853. The reversal of 561282847 is 748282165.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561282847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561282817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280641423 + 280641424.

It is an arithmetic number, because the mean of its divisors is an integer number (280641424).

Almost surely, 2^561282847 is an apocalyptic number.

561282847 is a deficient number, since it is larger than the sum of its proper divisors (1).

561282847 is an equidigital number, since it uses as much as digits as its factorization.

561282847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 215040, while the sum is 43.

The square root of 561282847 is about 23691.4087170856. The cubic root of 561282847 is about 824.8859821616.

The spelling of 561282847 in words is "five hundred sixty-one million, two hundred eighty-two thousand, eight hundred forty-seven".