556946 has 16 divisors (see below), whose sum is σ = 930048. Its totient is φ = 248400.

The previous prime is 556943. The next prime is 556957. The reversal of 556946 is 649655.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (556943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 461 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (58128).

2⁵⁵⁶⁹⁴⁶ is an apocalyptic number.

556946 is a deficient number, since it is larger than the sum of its proper divisors (373102).

556946 is a wasteful number, since it uses less digits than its factorization.

556946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737.

The product of its digits is 32400, while the sum is 35.

The square root of 556946 is about 746.2881481037. The cubic root of 556946 is about 82.2755946251.

The spelling of 556946 in words is "five hundred fifty-six thousand, nine hundred forty-six".