244689 has 4 divisors (see below), whose sum is σ = 326256. Its totient is φ = 163124.

The previous prime is 244687. The next prime is 244691. The reversal of 244689 is 986442.

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 an interprime number because it is at equal distance from previous prime (244687) and next prime (244691).

It is a cyclic number.

It is not a de Polignac number, because 244689 - 2¹ = 244687 is a prime.

It is a D-number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (244687) 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, 40779 + ... + 40784.

It is an arithmetic number, because the mean of its divisors is an integer number (81564).

2²⁴⁴⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

244689 is a deficient number, since it is larger than the sum of its proper divisors (81567).

244689 is an equidigital number, since it uses as much as digits as its factorization.

244689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81566.

The product of its digits is 13824, while the sum is 33.

The square root of 244689 is about 494.6604896290. The cubic root of 244689 is about 62.5467596745.

The spelling of 244689 in words is "two hundred forty-four thousand, six hundred eighty-nine".