498681 has 12 divisors (see below), whose sum is σ = 731952. Its totient is φ = 327096.

The previous prime is 498679. The next prime is 498689. The reversal of 498681 is 186894.

It is a happy number.

It is not a de Polignac number, because 498681 - 2¹ = 498679 is a prime.

It is a super-2 number, since 2×498681² = 497365479522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (498689) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 190 + ... + 1016.

It is an arithmetic number, because the mean of its divisors is an integer number (60996).

498681 is a Friedman number, since it can be written as 9^6-8^(4+1)+8, using all its digits and the basic arithmetic operations.

2⁴⁹⁸⁶⁸¹ is an apocalyptic number.

It is an amenable number.

498681 is a deficient number, since it is larger than the sum of its proper divisors (233271).

498681 is a wasteful number, since it uses less digits than its factorization.

498681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900 (or 897 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 498681 is about 706.1734914311. The cubic root of 498681 is about 79.3001984043.

The spelling of 498681 in words is "four hundred ninety-eight thousand, six hundred eighty-one".