556436 has 6 divisors (see below), whose sum is σ = 973770. Its totient is φ = 278216.

The previous prime is 556403. The next prime is 556441. The reversal of 556436 is 634655.

556436 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 8836 = 740^2 + 94^2 .

It is a junction number, because it is equal to n+sod(n) for n = 556399 and 556408.

It is a congruent number.

It is an unprimeable number.

556436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69551 + ... + 69558.

It is an arithmetic number, because the mean of its divisors is an integer number (162295).

2⁵⁵⁶⁴³⁶ is an apocalyptic number.

It is an amenable number.

556436 is a deficient number, since it is larger than the sum of its proper divisors (417334).

556436 is a wasteful number, since it uses less digits than its factorization.

556436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139113 (or 139111 counting only the distinct ones).

The product of its digits is 10800, while the sum is 29.

The square root of 556436 is about 745.9463787699. The cubic root of 556436 is about 82.2504734777.

The spelling of 556436 in words is "five hundred fifty-six thousand, four hundred thirty-six".