998269 has 4 divisors (see below), whose sum is σ = 1041696. Its totient is φ = 954844.

The previous prime is 998243. The next prime is 998273. The reversal of 998269 is 962899.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 998269 - 2⁵ = 998237 is a prime.

It is a super-2 number, since 2×998269² = 1993081992722, which contains 22 as substring.

It is a Duffinian number.

998269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21679 + ... + 21724.

It is an arithmetic number, because the mean of its divisors is an integer number (260424).

2⁹⁹⁸²⁶⁹ is an apocalyptic number.

It is an amenable number.

998269 is a deficient number, since it is larger than the sum of its proper divisors (43427).

998269 is a wasteful number, since it uses less digits than its factorization.

998269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43426.

The product of its digits is 69984, while the sum is 43.

The square root of 998269 is about 999.1341251304. The cubic root of 998269 is about 99.9422666750.

The spelling of 998269 in words is "nine hundred ninety-eight thousand, two hundred sixty-nine".