556912847 has 2 divisors, whose sum is σ = 556912848. Its totient is φ = 556912846.

The previous prime is 556912831. The next prime is 556912879. The reversal of 556912847 is 748219655.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556912847 - 2⁴ = 556912831 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556912247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278456423 + 278456424.

It is an arithmetic number, because the mean of its divisors is an integer number (278456424).

Almost surely, 2^556912847 is an apocalyptic number.

556912847 is a deficient number, since it is larger than the sum of its proper divisors (1).

556912847 is an equidigital number, since it uses as much as digits as its factorization.

556912847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 604800, while the sum is 47.

The square root of 556912847 is about 23599.0009746175. Note that the first 3 decimals coincide. The cubic root of 556912847 is about 822.7396206895.

The spelling of 556912847 in words is "five hundred fifty-six million, nine hundred twelve thousand, eight hundred forty-seven".