546646 has 4 divisors (see below), whose sum is σ = 819972. Its totient is φ = 273322.

The previous prime is 546643. The next prime is 546661. The reversal of 546646 is 646645.

546646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136660 + ... + 136663.

It is an arithmetic number, because the mean of its divisors is an integer number (204993).

2⁵⁴⁶⁶⁴⁶ is an apocalyptic number.

546646 is a deficient number, since it is larger than the sum of its proper divisors (273326).

546646 is a wasteful number, since it uses less digits than its factorization.

546646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273325.

The product of its digits is 17280, while the sum is 31.

The square root of 546646 is about 739.3551244159. The cubic root of 546646 is about 81.7652416973.

Subtracting 546646 from its reverse (646645), we obtain a palindrome (99999).

The spelling of 546646 in words is "five hundred forty-six thousand, six hundred forty-six".