498985 has 8 divisors (see below), whose sum is σ = 624960. Its totient is φ = 381744.

The previous prime is 498977. The next prime is 498989. The reversal of 498985 is 589894.

It is a happy number.

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 498985 - 2³ = 498977 is a prime.

It is an alternating number because its digits alternate between even and odd.

498985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (498989) 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 7 ways as a sum of consecutive naturals, for example, 2055 + ... + 2284.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2⁴⁹⁸⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

498985 is a deficient number, since it is larger than the sum of its proper divisors (125975).

498985 is a wasteful number, since it uses less digits than its factorization.

498985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4367.

The product of its digits is 103680, while the sum is 43.

The square root of 498985 is about 706.3887031939. The cubic root of 498985 is about 79.3163091467.

Subtracting 498985 from its reverse (589894), we obtain a palindrome (90909).

It can be divided in two parts, 4 and 98985, that added together give a palindrome (98989).

The spelling of 498985 in words is "four hundred ninety-eight thousand, nine hundred eighty-five".