1597598 has 4 divisors (see below), whose sum is σ = 2396400. Its totient is φ = 798798.

The previous prime is 1597597. The next prime is 1597601. The reversal of 1597598 is 8957951.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8957951 = 1367 ⋅6553.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1597597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399398 + ... + 399401.

It is an arithmetic number, because the mean of its divisors is an integer number (599100).

2^1597598 is an apocalyptic number.

1597598 is a deficient number, since it is larger than the sum of its proper divisors (798802).

1597598 is an equidigital number, since it uses as much as digits as its factorization.

1597598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798801.

The product of its digits is 113400, while the sum is 44.

The square root of 1597598 is about 1263.9612335827. The cubic root of 1597598 is about 116.9021511267.

The spelling of 1597598 in words is "one million, five hundred ninety-seven thousand, five hundred ninety-eight".