198487485 has 36 divisors (see below), whose sum is σ = 400220028. Its totient is φ = 90736128.

The previous prime is 198487483. The next prime is 198487501. The reversal of 198487485 is 584784891.

198487485 is a `hidden beast` number, since 1 + 9 + 84 + 87 + 485 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 130028409 + 68459076 = 11403^2 + 8274^2 .

It is not a de Polignac number, because 198487485 - 2¹ = 198487483 is a prime.

It is a super-3 number, since 3×198487485³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198487481) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 42804 + ... + 47213.

It is an arithmetic number, because the mean of its divisors is an integer number (11117223).

Almost surely, 2^198487485 is an apocalyptic number.

198487485 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198487485 is an abundant number, since it is smaller than the sum of its proper divisors (201732543).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198487485 is a wasteful number, since it uses less digits than its factorization.

198487485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90042 (or 90032 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 54.

The square root of 198487485 is about 14088.5586558739. The cubic root of 198487485 is about 583.3256087866.

The spelling of 198487485 in words is "one hundred ninety-eight million, four hundred eighty-seven thousand, four hundred eighty-five".