556964321 has 8 divisors (see below), whose sum is σ = 579131904. Its totient is φ = 535059360.

The previous prime is 556964273. The next prime is 556964323. The reversal of 556964321 is 123469655.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-556964321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556964323) 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, 61325 + ... + 69818.

It is an arithmetic number, because the mean of its divisors is an integer number (72391488).

Almost surely, 2^556964321 is an apocalyptic number.

It is an amenable number.

556964321 is a deficient number, since it is larger than the sum of its proper divisors (22167583).

556964321 is a wasteful number, since it uses less digits than its factorization.

556964321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131311.

The product of its digits is 194400, while the sum is 41.

The square root of 556964321 is about 23600.0915464326. The cubic root of 556964321 is about 822.7649678000.

The spelling of 556964321 in words is "five hundred fifty-six million, nine hundred sixty-four thousand, three hundred twenty-one".