998285245 has 4 divisors (see below), whose sum is σ = 1197942300. Its totient is φ = 798628192.

The previous prime is 998285243. The next prime is 998285269. The reversal of 998285245 is 542582899.

998285245 = 22341² + 22342².

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 499164964 + 499120281 = 22342^2 + 22341^2 .

It is a cyclic number.

It is not a de Polignac number, because 998285245 - 2¹ = 998285243 is a prime.

It is a super-3 number, since 3×998285245³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 998285192 and 998285201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998285243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99828520 + ... + 99828529.

It is an arithmetic number, because the mean of its divisors is an integer number (299485575).

Almost surely, 2^998285245 is an apocalyptic number.

998285245 is the 22342-nd centered square number.

It is an amenable number.

998285245 is a deficient number, since it is larger than the sum of its proper divisors (199657055).

998285245 is a wasteful number, since it uses less digits than its factorization.

998285245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199657054.

The product of its digits is 2073600, while the sum is 52.

The square root of 998285245 is about 31595.6523116710. The cubic root of 998285245 is about 999.4280879790.

The spelling of 998285245 in words is "nine hundred ninety-eight million, two hundred eighty-five thousand, two hundred forty-five".