298523 has 4 divisors (see below), whose sum is σ = 300840. Its totient is φ = 296208.

The previous prime is 298513. The next prime is 298559. The reversal of 298523 is 325892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 298523 - 2¹⁶ = 232987 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (298513) 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, 953 + ... + 1226.

It is an arithmetic number, because the mean of its divisors is an integer number (75210).

2²⁹⁸⁵²³ is an apocalyptic number.

298523 is a deficient number, since it is larger than the sum of its proper divisors (2317).

298523 is a wasteful number, since it uses less digits than its factorization.

298523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2316.

The product of its digits is 4320, while the sum is 29.

The square root of 298523 is about 546.3725834996. The cubic root of 298523 is about 66.8332528335.

The spelling of 298523 in words is "two hundred ninety-eight thousand, five hundred twenty-three".