505877 has 2 divisors, whose sum is σ = 505878. Its totient is φ = 505876.

The previous prime is 505871. The next prime is 505907. The reversal of 505877 is 778505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376996 + 128881 = 614^2 + 359^2 .

It is a cyclic number.

It is not a de Polignac number, because 505877 - 2¹⁰ = 504853 is a prime.

It is a Chen prime.

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 505877.

It is not a weakly prime, because it can be changed into another prime (505871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252938 + 252939.

It is an arithmetic number, because the mean of its divisors is an integer number (252939).

2⁵⁰⁵⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

505877 is a deficient number, since it is larger than the sum of its proper divisors (1).

505877 is an equidigital number, since it uses as much as digits as its factorization.

505877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9800, while the sum is 32.

The square root of 505877 is about 711.2503075571. The cubic root of 505877 is about 79.6798139710.

The spelling of 505877 in words is "five hundred five thousand, eight hundred seventy-seven".