655477 has 4 divisors (see below), whose sum is σ = 684000. Its totient is φ = 626956.

The previous prime is 655471. The next prime is 655489. The reversal of 655477 is 774556.

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.

It is a cyclic number.

It is not a de Polignac number, because 655477 - 2¹⁵ = 622709 is a prime.

It is a Duffinian number.

655477 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (655471) 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 3 ways as a sum of consecutive naturals, for example, 14227 + ... + 14272.

It is an arithmetic number, because the mean of its divisors is an integer number (171000).

2⁶⁵⁵⁴⁷⁷ is an apocalyptic number.

It is an amenable number.

655477 is a deficient number, since it is larger than the sum of its proper divisors (28523).

655477 is a wasteful number, since it uses less digits than its factorization.

655477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28522.

The product of its digits is 29400, while the sum is 34.

The square root of 655477 is about 809.6153407637. The cubic root of 655477 is about 86.8665324804.

The spelling of 655477 in words is "six hundred fifty-five thousand, four hundred seventy-seven".