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877 is a prime number

877 has 2 divisors, whose sum is σ = 878. Its totient is φ = 876.

The previous prime is 863. The next prime is 881. The reversal of 877 is 778.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 841 + 36 = 29^2 + 6^2 .

It is a cyclic number.

It is the 7-th Bell number.

It is a de Polignac number, because none of the positive numbers 2k-877 is a prime.

It is a Chen prime.

It is a plaindrome in base 8, base 14 and base 16.

It is a nialpdrome in base 10 and base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (827) 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 as a sum of consecutive naturals, namely, 438 + 439.

It is an arithmetic number, because the mean of its divisors is an integer number (439).

It is an amenable number.

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

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

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

The product of its digits is 392, while the sum is 22.

The square root of 877 is about 29.6141857899. The cubic root of 877 is about 9.5719377255.

Subtracting from 877 its reverse (778), we obtain a palindrome (99).

It can be divided in two parts, 8 and 77, that multiplied together give a palindrome (616).

The spelling of 877 in words is "eight hundred seventy-seven", and thus it is an aban number and an oban number.