498866 has 4 divisors (see below), whose sum is σ = 748302. Its totient is φ = 249432.

The previous prime is 498859. The next prime is 498881. The reversal of 498866 is 668894.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 668894 = 2 ⋅334447.

It can be written as a sum of positive squares in only one way, i.e., 390625 + 108241 = 625^2 + 329^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 498866.

It is an unprimeable number.

498866 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 124715 + ... + 124718.

2⁴⁹⁸⁸⁶⁶ is an apocalyptic number.

498866 is a deficient number, since it is larger than the sum of its proper divisors (249436).

498866 is a wasteful number, since it uses less digits than its factorization.

498866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249435.

The product of its digits is 82944, while the sum is 41.

The square root of 498866 is about 706.3044669263. The cubic root of 498866 is about 79.3100034186.

It can be divided in two parts, 49 and 8866, that multiplied together give a palindrome (434434).

The spelling of 498866 in words is "four hundred ninety-eight thousand, eight hundred sixty-six".