998877 has 8 divisors (see below), whose sum is σ = 1452960. Its totient is φ = 605360.

The previous prime is 998861. The next prime is 998897. The reversal of 998877 is 778899.

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 998877 - 2⁴ = 998861 is a prime.

It is a super-4 number, since 4×998877⁴ (a number of 25 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a nialpdrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15102 + ... + 15167.

It is an arithmetic number, because the mean of its divisors is an integer number (181620).

2⁹⁹⁸⁸⁷⁷ is an apocalyptic number.

It is an amenable number.

998877 is a deficient number, since it is larger than the sum of its proper divisors (454083).

998877 is a wasteful number, since it uses less digits than its factorization.

998877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30283.

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

The square root of 998877 is about 999.4383422703. The cubic root of 998877 is about 99.9625526454.

The spelling of 998877 in words is "nine hundred ninety-eight thousand, eight hundred seventy-seven".