971868 has 12 divisors (see below), whose sum is σ = 2267720. Its totient is φ = 323952.

The previous prime is 971863. The next prime is 971899. The reversal of 971868 is 868179.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40483 + ... + 40506.

2⁹⁷¹⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

971868 is an abundant number, since it is smaller than the sum of its proper divisors (1295852).

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

971868 is a wasteful number, since it uses less digits than its factorization.

971868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80996 (or 80994 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 971868 is about 985.8336573682. The cubic root of 971868 is about 99.0533331651.

The spelling of 971868 in words is "nine hundred seventy-one thousand, eight hundred sixty-eight".