655706 has 4 divisors (see below), whose sum is σ = 983562. Its totient is φ = 327852.

The previous prime is 655693. The next prime is 655717. The reversal of 655706 is 607556.

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., 654481 + 1225 = 809^2 + 35^2 .

It is a zygodrome in base 4.

It is an unprimeable 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, 163925 + ... + 163928.

2⁶⁵⁵⁷⁰⁶ is an apocalyptic number.

655706 is a deficient number, since it is larger than the sum of its proper divisors (327856).

655706 is a wasteful number, since it uses less digits than its factorization.

655706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327855.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 655706 is about 809.7567535995. The cubic root of 655706 is about 86.8766473128.

The spelling of 655706 in words is "six hundred fifty-five thousand, seven hundred six".