498994 has 4 divisors (see below), whose sum is σ = 748494. Its totient is φ = 249496.

The previous prime is 498989. The next prime is 499021. The reversal of 498994 is 499894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499894 = 2 ⋅249947.

It can be written as a sum of positive squares in only one way, i.e., 308025 + 190969 = 555^2 + 437^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 498994.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 124747 + ... + 124750.

2⁴⁹⁸⁹⁹⁴ is an apocalyptic number.

498994 is a deficient number, since it is larger than the sum of its proper divisors (249500).

498994 is a wasteful number, since it uses less digits than its factorization.

498994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249499.

The product of its digits is 93312, while the sum is 43.

The square root of 498994 is about 706.3950735955. The cubic root of 498994 is about 79.3167860097.

Subtracting 498994 from its reverse (499894), we obtain a square (900 = 30²).

The spelling of 498994 in words is "four hundred ninety-eight thousand, nine hundred ninety-four".