655877 has 8 divisors (see below), whose sum is σ = 712152. Its totient is φ = 601600.

The previous prime is 655859. The next prime is 655883. The reversal of 655877 is 778556.

It can be written as a sum of positive squares in 4 ways, for example, as 64516 + 591361 = 254^2 + 769^2 .

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 655877 - 2¹⁰ = 654853 is a prime.

It is a super-3 number, since 3×655877³ = 846424955364033399, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655877.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 655877.

It is not an unprimeable number, because it can be changed into a prime (655807) 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, 227 + ... + 1167.

It is an arithmetic number, because the mean of its divisors is an integer number (89019).

2⁶⁵⁵⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

655877 is a deficient number, since it is larger than the sum of its proper divisors (56275).

655877 is a wasteful number, since it uses less digits than its factorization.

655877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999.

The product of its digits is 58800, while the sum is 38.

The square root of 655877 is about 809.8623339803. The cubic root of 655877 is about 86.8841987741.

The spelling of 655877 in words is "six hundred fifty-five thousand, eight hundred seventy-seven".