988977 has 16 divisors (see below), whose sum is σ = 1502208. Its totient is φ = 572880.

The previous prime is 988963. The next prime is 988979. The reversal of 988977 is 779889.

It is not a de Polignac number, because 988977 - 2⁷ = 988849 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 988977.

It is not an unprimeable number, because it can be changed into a prime (988979) 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 15 ways as a sum of consecutive naturals, for example, 108 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (93888).

2⁹⁸⁸⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

988977 is a deficient number, since it is larger than the sum of its proper divisors (513231).

988977 is a wasteful number, since it uses less digits than its factorization.

988977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340.

The product of its digits is 254016, while the sum is 48.

The square root of 988977 is about 994.4732273923. The cubic root of 988977 is about 99.6312082652.

The spelling of 988977 in words is "nine hundred eighty-eight thousand, nine hundred seventy-seven".