655633 has 8 divisors (see below), whose sum is σ = 753120. Its totient is φ = 564480.

The previous prime is 655601. The next prime is 655637. The reversal of 655633 is 336556.

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 655633 - 2⁵ = 655601 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (655637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1360 + ... + 1777.

It is an arithmetic number, because the mean of its divisors is an integer number (94140).

2⁶⁵⁵⁶³³ is an apocalyptic number.

It is an amenable number.

655633 is a deficient number, since it is larger than the sum of its proper divisors (97487).

655633 is a wasteful number, since it uses less digits than its factorization.

655633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3167.

The product of its digits is 8100, while the sum is 28.

The square root of 655633 is about 809.7116770802. The cubic root of 655633 is about 86.8734231896.

The spelling of 655633 in words is "six hundred fifty-five thousand, six hundred thirty-three".