9877 has 8 divisors (see below), whose sum is σ = 12096. Its totient is φ = 7872.

The previous prime is 9871. The next prime is 9883. The reversal of 9877 is 7789.

9877 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9871) and next prime (9883).

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 9877 - 2⁷ = 9749 is a prime.

It is a nialpdrome in base 10.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9871) 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 7 ways as a sum of consecutive naturals, for example, 78 + ... + 160.

It is an arithmetic number, because the mean of its divisors is an integer number (1512).

2⁹⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

9877 is a deficient number, since it is larger than the sum of its proper divisors (2219).

9877 is a wasteful number, since it uses less digits than its factorization.

9877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107.

The product of its digits is 3528, while the sum is 31.

The square root of 9877 is about 99.3830971544. The cubic root of 9877 is about 21.4556504223.

The spelling of 9877 in words is "nine thousand, eight hundred seventy-seven".