655949 has 8 divisors (see below), whose sum is σ = 759360. Its totient is φ = 554976.

The previous prime is 655943. The next prime is 655961. The reversal of 655949 is 949556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 655949 - 2⁸ = 655693 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655943) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 17 + ... + 1145.

It is an arithmetic number, because the mean of its divisors is an integer number (94920).

2⁶⁵⁵⁹⁴⁹ is an apocalyptic number.

It is an amenable number.

655949 is a deficient number, since it is larger than the sum of its proper divisors (103411).

655949 is a wasteful number, since it uses less digits than its factorization.

655949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1219.

The product of its digits is 48600, while the sum is 38.

The square root of 655949 is about 809.9067847598. The cubic root of 655949 is about 86.8873779441.

It can be divided in two parts, 6 and 55949, that added together give a palindrome (55955).

The spelling of 655949 in words is "six hundred fifty-five thousand, nine hundred forty-nine".