556912947 has 8 divisors (see below), whose sum is σ = 745822656. Its totient is φ = 369639272.

The previous prime is 556912943. The next prime is 556912957. The reversal of 556912947 is 749219655.

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

It is a cyclic number.

It is not a de Polignac number, because 556912947 - 2² = 556912943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 556912896 and 556912905.

It is not an unprimeable number, because it can be changed into a prime (556912943) 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, 408213 + ... + 409574.

It is an arithmetic number, because the mean of its divisors is an integer number (93227832).

Almost surely, 2^556912947 is an apocalyptic number.

556912947 is a deficient number, since it is larger than the sum of its proper divisors (188909709).

556912947 is a wasteful number, since it uses less digits than its factorization.

556912947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818017.

The product of its digits is 680400, while the sum is 48.

The square root of 556912947 is about 23599.0030933512. The cubic root of 556912947 is about 822.7396699335.

The spelling of 556912947 in words is "five hundred fifty-six million, nine hundred twelve thousand, nine hundred forty-seven".