998876025 has 135 divisors (see below), whose sum is σ = 2136824079.
Its totient is φ = 446009760.
The previous prime is 998875991. The next prime is 998876051. The reversal of 998876025 is 520678899.
It is a happy number.
The square root of 998876025 is 31605.
It is a perfect power (a square), and thus also a powerful number.
It can be written as a sum of positive squares in only one way, i.e., 359595369 + 639280656 = 18963^2 + 25284^2
It is not a de Polignac number, because 998876025 - 27 = 998875897 is a prime.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 134 ways as a sum of consecutive naturals, for example, 23229654 + ... + 23229696.
Almost surely, 2998876025 is an apocalyptic number.
998876025 is the 31605-th square number.
998876025 is the 15803-rd centered octagonal number.
It is an amenable number.
998876025 is an abundant number, since it is smaller than the sum of its proper divisors (1137948054).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
998876025 is an equidigital number, since it uses as much as digits as its factorization.
998876025 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 130 (or 58 counting only the distinct ones).
The product of its (nonzero) digits is 2177280, while the sum is 54.
The cubic root of 998876025 is about 999.6252012101.
The spelling of 998876025 in words is "nine hundred ninety-eight million, eight hundred seventy-six thousand, twenty-five".