556747 has 4 divisors (see below), whose sum is σ = 565936. Its totient is φ = 547560.

The previous prime is 556741. The next prime is 556753. The reversal of 556747 is 747655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747655 = 5 ⋅149531.

It is an interprime number because it is at equal distance from previous prime (556741) and next prime (556753).

It is a cyclic number.

It is not a de Polignac number, because 556747 - 2¹¹ = 554699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4503 + ... + 4624.

It is an arithmetic number, because the mean of its divisors is an integer number (141484).

2⁵⁵⁶⁷⁴⁷ is an apocalyptic number.

556747 is a deficient number, since it is larger than the sum of its proper divisors (9189).

556747 is an equidigital number, since it uses as much as digits as its factorization.

556747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9188.

The product of its digits is 29400, while the sum is 34.

The square root of 556747 is about 746.1548096742. The cubic root of 556747 is about 82.2657942772.

The spelling of 556747 in words is "five hundred fifty-six thousand, seven hundred forty-seven".