971189508 has 12 divisors (see below), whose sum is σ = 2266108880. Its totient is φ = 323729832.

The previous prime is 971189507. The next prime is 971189521. The reversal of 971189508 is 805981179.

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

It is not an unprimeable number, because it can be changed into a prime (971189507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40466218 + ... + 40466241.

Almost surely, 2^971189508 is an apocalyptic number.

It is an amenable number.

971189508 is an abundant number, since it is smaller than the sum of its proper divisors (1294919372).

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

971189508 is a wasteful number, since it uses less digits than its factorization.

971189508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80932466 (or 80932464 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 48.

The square root of 971189508 is about 31163.9135539810. The cubic root of 971189508 is about 990.3027703679.

The spelling of 971189508 in words is "nine hundred seventy-one million, one hundred eighty-nine thousand, five hundred eight".