597998 has 4 divisors (see below), whose sum is σ = 897000. Its totient is φ = 298998.

The previous prime is 597997. The next prime is 598007. The reversal of 597998 is 899795.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (597997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 149498 + ... + 149501.

It is an arithmetic number, because the mean of its divisors is an integer number (224250).

2⁵⁹⁷⁹⁹⁸ is an apocalyptic number.

597998 is a deficient number, since it is larger than the sum of its proper divisors (299002).

597998 is a wasteful number, since it uses less digits than its factorization.

597998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299001.

The product of its digits is 204120, while the sum is 47.

The square root of 597998 is about 773.3033040147. The cubic root of 597998 is about 84.2493535452.

The spelling of 597998 in words is "five hundred ninety-seven thousand, nine hundred ninety-eight".