298723 has 2 divisors, whose sum is σ = 298724. Its totient is φ = 298722.

The previous prime is 298709. The next prime is 298733. The reversal of 298723 is 327892.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 298723 - 2⁵ = 298691 is a prime.

It is a d-powerful number, because it can be written as 2⁴ + 9 + 7⁵ + 8² + 2¹⁸ + 3⁹ .

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

It is not a weakly prime, because it can be changed into another prime (298733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149361 + 149362.

It is an arithmetic number, because the mean of its divisors is an integer number (149362).

2²⁹⁸⁷²³ is an apocalyptic number.

298723 is a deficient number, since it is larger than the sum of its proper divisors (1).

298723 is an equidigital number, since it uses as much as digits as its factorization.

298723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 31.

The square root of 298723 is about 546.5555781437. Note that the first 4 decimals coincide. The cubic root of 298723 is about 66.8481748178.

The spelling of 298723 in words is "two hundred ninety-eight thousand, seven hundred twenty-three".