971684448 has 48 divisors (see below), whose sum is σ = 2915055360. Its totient is φ = 277623936.

The previous prime is 971684431. The next prime is 971684449. The reversal of 971684448 is 844486179.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 971684448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971684449) 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, 722308 + ... + 723651.

It is an arithmetic number, because the mean of its divisors is an integer number (60730320).

Almost surely, 2^971684448 is an apocalyptic number.

It is an amenable number.

971684448 is an abundant number, since it is smaller than the sum of its proper divisors (1943370912).

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

971684448 is a wasteful number, since it uses less digits than its factorization.

971684448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445979 (or 1445971 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The square root of 971684448 is about 31171.8534578873. The cubic root of 971684448 is about 990.4709686479.

The spelling of 971684448 in words is "nine hundred seventy-one million, six hundred eighty-four thousand, four hundred forty-eight".