1598243 has 4 divisors (see below), whose sum is σ = 1602840. Its totient is φ = 1593648.

The previous prime is 1598239. The next prime is 1598257. The reversal of 1598243 is 3428951.

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 1598243 - 2² = 1598239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1598213) 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, 1730 + ... + 2487.

It is an arithmetic number, because the mean of its divisors is an integer number (400710).

2^1598243 is an apocalyptic number.

1598243 is a deficient number, since it is larger than the sum of its proper divisors (4597).

1598243 is an equidigital number, since it uses as much as digits as its factorization.

1598243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4596.

The product of its digits is 8640, while the sum is 32.

The square root of 1598243 is about 1264.2163580653. The cubic root of 1598243 is about 116.9178813547.

The spelling of 1598243 in words is "one million, five hundred ninety-eight thousand, two hundred forty-three".