971978700 has 216 divisors, whose sum is σ = 3569396544. Its totient is φ = 201936000.

The previous prime is 971978699. The next prime is 971978729. The reversal of 971978700 is 7879179.

It is a self number, because there is not a number n which added to its sum of digits gives 971978700.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 158695 + ... + 164705.

It is an arithmetic number, because the mean of its divisors is an integer number (16524984).

Almost surely, 2^971978700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971978700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784698272).

971978700 is an abundant number, since it is smaller than the sum of its proper divisors (2597417844).

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

971978700 is a wasteful number, since it uses less digits than its factorization.

971978700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6053 (or 6039 counting only the distinct ones).

The product of its (nonzero) digits is 222264, while the sum is 48.

The square root of 971978700 is about 31176.5729354591. The cubic root of 971978700 is about 990.5709389108.

The spelling of 971978700 in words is "nine hundred seventy-one million, nine hundred seventy-eight thousand, seven hundred".