655493 has 4 divisors (see below), whose sum is σ = 657120. Its totient is φ = 653868.

The previous prime is 655489. The next prime is 655507. The reversal of 655493 is 394556.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 655493 - 2² = 655489 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655453) 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 3 ways as a sum of consecutive naturals, for example, 296 + ... + 1182.

It is an arithmetic number, because the mean of its divisors is an integer number (164280).

2⁶⁵⁵⁴⁹³ is an apocalyptic number.

It is an amenable number.

655493 is a deficient number, since it is larger than the sum of its proper divisors (1627).

655493 is an equidigital number, since it uses as much as digits as its factorization.

655493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1626.

The product of its digits is 16200, while the sum is 32.

The square root of 655493 is about 809.6252219391. The cubic root of 655493 is about 86.8672392702.

The spelling of 655493 in words is "six hundred fifty-five thousand, four hundred ninety-three".