1205598 has 16 divisors (see below), whose sum is σ = 2448000. Its totient is φ = 395736.

The previous prime is 1205563. The next prime is 1205609. The reversal of 1205598 is 8955021.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1098 + ... + 1901.

It is an arithmetic number, because the mean of its divisors is an integer number (153000).

2^1205598 is an apocalyptic number.

1205598 is an abundant number, since it is smaller than the sum of its proper divisors (1242402).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1205598 is a wasteful number, since it uses less digits than its factorization.

1205598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1205598 is about 1097.9972677562. The cubic root of 1205598 is about 106.4308440361.

The spelling of 1205598 in words is "one million, two hundred five thousand, five hundred ninety-eight".