498678 has 16 divisors (see below), whose sum is σ = 1056240. Its totient is φ = 156416.

The previous prime is 498653. The next prime is 498679. The reversal of 498678 is 876894.

It is a happy number.

It is a super-3 number, since 3×498678³ = 372033357646685256, which contains 333 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (498679) by changing a digit.

498678 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2343 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (66015).

2⁴⁹⁸⁶⁷⁸ is an apocalyptic number.

498678 is an abundant number, since it is smaller than the sum of its proper divisors (557562).

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

498678 is a wasteful number, since it uses less digits than its factorization.

498678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911.

The product of its digits is 96768, while the sum is 42.

The square root of 498678 is about 706.1713673040. The cubic root of 498678 is about 79.3000393841.

It can be divided in two parts, 498 and 678, that added together give a triangular number (1176 = T₄₈).

The spelling of 498678 in words is "four hundred ninety-eight thousand, six hundred seventy-eight".