971047660 has 24 divisors (see below), whose sum is σ = 2224582416. Its totient is φ = 353108160.

The previous prime is 971047657. The next prime is 971047681. The reversal of 971047660 is 66740179.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2206707 + ... + 2207146.

It is an arithmetic number, because the mean of its divisors is an integer number (92690934).

Almost surely, 2^971047660 is an apocalyptic number.

It is an amenable number.

971047660 is an abundant number, since it is smaller than the sum of its proper divisors (1253534756).

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

971047660 is a wasteful number, since it uses less digits than its factorization.

971047660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4413873 (or 4413871 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 971047660 is about 31161.6376334749. The cubic root of 971047660 is about 990.2545548186.

The spelling of 971047660 in words is "nine hundred seventy-one million, forty-seven thousand, six hundred sixty".