987877 has 8 divisors (see below), whose sum is σ = 1112832. Its totient is φ = 868800.

The previous prime is 987869. The next prime is 987911. The reversal of 987877 is 778789.

It is a happy number.

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 987877 - 2³ = 987869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (984877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1108 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (139104).

2⁹⁸⁷⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

987877 is a deficient number, since it is larger than the sum of its proper divisors (124955).

987877 is a wasteful number, since it uses less digits than its factorization.

987877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939.

The product of its digits is 197568, while the sum is 46.

The square root of 987877 is about 993.9200169028. The cubic root of 987877 is about 99.5942559442.

The spelling of 987877 in words is "nine hundred eighty-seven thousand, eight hundred seventy-seven".