655361 has 8 divisors (see below), whose sum is σ = 753984. Its totient is φ = 558000.

The previous prime is 655357. The next prime is 655373. The reversal of 655361 is 163556.

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 655361 - 2² = 655357 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 655361.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655361.

It is not an unprimeable number, because it can be changed into a prime (655301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1571 + ... + 1943.

It is an arithmetic number, because the mean of its divisors is an integer number (94248).

It is a Proth number, since it is equal to 5 ⋅ 2¹⁷ + 1 and 5 < 2¹⁷.

2⁶⁵⁵³⁶¹ is an apocalyptic number.

It is an amenable number.

655361 is a deficient number, since it is larger than the sum of its proper divisors (98623).

655361 is a wasteful number, since it uses less digits than its factorization.

655361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631.

The product of its digits is 2700, while the sum is 26.

The square root of 655361 is about 809.5436986352. The cubic root of 655361 is about 86.8614079110.

The spelling of 655361 in words is "six hundred fifty-five thousand, three hundred sixty-one".