498869 has 6 divisors (see below), whose sum is σ = 580374. Its totient is φ = 427560.

The previous prime is 498859. The next prime is 498881. The reversal of 498869 is 968894.

498869 = 17² + 18² + ... + 114².

It can be written as a sum of positive squares in only one way, i.e., 442225 + 56644 = 665^2 + 238^2 .

It is not a de Polignac number, because 498869 - 2⁸ = 498613 is a prime.

It is a super-2 number, since 2×498869² = 497740558322, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 498869.

It is not an unprimeable number, because it can be changed into a prime (498859) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5042 + ... + 5139.

It is an arithmetic number, because the mean of its divisors is an integer number (96729).

2⁴⁹⁸⁸⁶⁹ is an apocalyptic number.

498869 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

498869 is a deficient number, since it is larger than the sum of its proper divisors (81505).

498869 is a wasteful number, since it uses less digits than its factorization.

498869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10195 (or 10188 counting only the distinct ones).

The product of its digits is 124416, while the sum is 44.

The square root of 498869 is about 706.3065906531. The cubic root of 498869 is about 79.3101623988.

The spelling of 498869 in words is "four hundred ninety-eight thousand, eight hundred sixty-nine".