556877 has 4 divisors (see below), whose sum is σ = 562716. Its totient is φ = 551040.

The previous prime is 556867. The next prime is 556883. The reversal of 556877 is 778655.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778655 = 5 ⋅155731.

It can be written as a sum of positive squares in 2 ways, for example, as 264196 + 292681 = 514^2 + 541^2 .

It is a cyclic number.

It is not a de Polignac number, because 556877 - 2⁴ = 556861 is a prime.

It is a super-2 number, since 2×556877² = 620223986258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 556877.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 556877.

It is not an unprimeable number, because it can be changed into a prime (556817) 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, 2774 + ... + 2967.

It is an arithmetic number, because the mean of its divisors is an integer number (140679).

2⁵⁵⁶⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

556877 is a deficient number, since it is larger than the sum of its proper divisors (5839).

556877 is an equidigital number, since it uses as much as digits as its factorization.

556877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5838.

The product of its digits is 58800, while the sum is 38.

The square root of 556877 is about 746.2419178792. The cubic root of 556877 is about 82.2721967790.

The spelling of 556877 in words is "five hundred fifty-six thousand, eight hundred seventy-seven".