659546 has 4 divisors (see below), whose sum is σ = 989322. Its totient is φ = 329772.

The previous prime is 659539. The next prime is 659563. The reversal of 659546 is 645956.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 373321 + 286225 = 611^2 + 535^2 .

It is a super-2 number, since 2×659546² = 870001852232, which contains 22 as substring.

It is an unprimeable number.

659546 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164885 + ... + 164888.

2⁶⁵⁹⁵⁴⁶ is an apocalyptic number.

659546 is a deficient number, since it is larger than the sum of its proper divisors (329776).

659546 is a wasteful number, since it uses less digits than its factorization.

659546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329775.

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

The square root of 659546 is about 812.1243747112. The cubic root of 659546 is about 87.0459087425.

The spelling of 659546 in words is "six hundred fifty-nine thousand, five hundred forty-six".