1197598 has 4 divisors (see below), whose sum is σ = 1796400. Its totient is φ = 598798.

The previous prime is 1197577. The next prime is 1197601. The reversal of 1197598 is 8957911.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1197598.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 299398 + ... + 299401.

It is an arithmetic number, because the mean of its divisors is an integer number (449100).

2^1197598 is an apocalyptic number.

1197598 is a deficient number, since it is larger than the sum of its proper divisors (598802).

1197598 is an equidigital number, since it uses as much as digits as its factorization.

1197598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598801.

The product of its digits is 22680, while the sum is 40.

The square root of 1197598 is about 1094.3482078388. The cubic root of 1197598 is about 106.1949066164.

It can be divided in two parts, 1197 and 598, that multiplied together give a triangular number (715806 = T₁₁₉₆).

The spelling of 1197598 in words is "one million, one hundred ninety-seven thousand, five hundred ninety-eight".