298661 has 8 divisors (see below), whose sum is σ = 343200. Its totient is φ = 257040.

The previous prime is 298651. The next prime is 298667. The reversal of 298661 is 166892.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-298661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (298667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506 + ... + 923.

It is an arithmetic number, because the mean of its divisors is an integer number (42900).

2²⁹⁸⁶⁶¹ is an apocalyptic number.

It is an amenable number.

298661 is a deficient number, since it is larger than the sum of its proper divisors (44539).

298661 is a wasteful number, since it uses less digits than its factorization.

298661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1459.

The product of its digits is 5184, while the sum is 32.

The square root of 298661 is about 546.4988563574. The cubic root of 298661 is about 66.8435497152.

Subtracting from 298661 its reverse (166892), we obtain a square (131769 = 363²).

It can be divided in two parts, 298 and 661, that added together give a palindrome (959).

The spelling of 298661 in words is "two hundred ninety-eight thousand, six hundred sixty-one".