971798 has 4 divisors (see below), whose sum is σ = 1457700. Its totient is φ = 485898.

The previous prime is 971783. The next prime is 971821. The reversal of 971798 is 897179.

971798 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 897179 = 109 ⋅8231.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 971798.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242948 + ... + 242951.

It is an arithmetic number, because the mean of its divisors is an integer number (364425).

2⁹⁷¹⁷⁹⁸ is an apocalyptic number.

971798 is a deficient number, since it is larger than the sum of its proper divisors (485902).

971798 is a wasteful number, since it uses less digits than its factorization.

971798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485901.

The product of its digits is 31752, while the sum is 41.

The square root of 971798 is about 985.7981537820. The cubic root of 971798 is about 99.0509549616.

The spelling of 971798 in words is "nine hundred seventy-one thousand, seven hundred ninety-eight".