556736 has 14 divisors (see below), whose sum is σ = 1104900. Its totient is φ = 278336.

The previous prime is 556727. The next prime is 556741. The reversal of 556736 is 637655.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

556736 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, 4286 + ... + 4413.

2⁵⁵⁶⁷³⁶ is an apocalyptic number.

It is an amenable number.

556736 is a deficient number, since it is larger than the sum of its proper divisors (548164).

556736 is an equidigital number, since it uses as much as digits as its factorization.

556736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8711 (or 8701 counting only the distinct ones).

The product of its digits is 18900, while the sum is 32.

The square root of 556736 is about 746.1474385133. The cubic root of 556736 is about 82.2652524813.

The spelling of 556736 in words is "five hundred fifty-six thousand, seven hundred thirty-six".