655287 has 8 divisors (see below), whose sum is σ = 881904. Its totient is φ = 432768.

The previous prime is 655283. The next prime is 655289. The reversal of 655287 is 782556.

It is a happy number.

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

It is not a de Polignac number, because 655287 - 2² = 655283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628 + ... + 1305.

It is an arithmetic number, because the mean of its divisors is an integer number (110238).

2⁶⁵⁵²⁸⁷ is an apocalyptic number.

655287 is a deficient number, since it is larger than the sum of its proper divisors (226617).

655287 is a wasteful number, since it uses less digits than its factorization.

655287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049.

The product of its digits is 16800, while the sum is 33.

The square root of 655287 is about 809.4979925855. The cubic root of 655287 is about 86.8581384732.

The spelling of 655287 in words is "six hundred fifty-five thousand, two hundred eighty-seven".