971413648 has 20 divisors (see below), whose sum is σ = 1963945728. Its totient is φ = 464588960.

The previous prime is 971413633. The next prime is 971413673. The reversal of 971413648 is 846314179.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319488 + ... + 1320223.

Almost surely, 2^971413648 is an apocalyptic number.

It is an amenable number.

971413648 is an abundant number, since it is smaller than the sum of its proper divisors (992532080).

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

971413648 is a wasteful number, since it uses less digits than its factorization.

971413648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639742 (or 2639736 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 971413648 is about 31167.5094930602. The cubic root of 971413648 is about 990.3789482190.

The spelling of 971413648 in words is "nine hundred seventy-one million, four hundred thirteen thousand, six hundred forty-eight".