971598 has 16 divisors (see below), whose sum is σ = 1967616. Its totient is φ = 319800.

The previous prime is 971591. The next prime is 971639. The reversal of 971598 is 895179.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478 + ... + 1473.

It is an arithmetic number, because the mean of its divisors is an integer number (122976).

2⁹⁷¹⁵⁹⁸ is an apocalyptic number.

971598 is an abundant number, since it is smaller than the sum of its proper divisors (996018).

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

971598 is a wasteful number, since it uses less digits than its factorization.

971598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039.

The product of its digits is 22680, while the sum is 39.

The square root of 971598 is about 985.6967079178. The cubic root of 971598 is about 99.0441594649.

The spelling of 971598 in words is "nine hundred seventy-one thousand, five hundred ninety-eight".