971713770 has 64 divisors (see below), whose sum is σ = 2460672000. Its totient is φ = 244904256.

The previous prime is 971713723. The next prime is 971713777. The reversal of 971713770 is 77317179.

It is a super-2 number, since 2×971713770² = 1888455301615225800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (971713777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271251 + ... + 274809.

It is an arithmetic number, because the mean of its divisors is an integer number (38448000).

Almost surely, 2^971713770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 971713770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1230336000).

971713770 is an abundant number, since it is smaller than the sum of its proper divisors (1488958230).

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

971713770 is a wasteful number, since it uses less digits than its factorization.

971713770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067.

The product of its (nonzero) digits is 64827, while the sum is 42.

The square root of 971713770 is about 31172.3237824837. The cubic root of 971713770 is about 990.4809315180.

The spelling of 971713770 in words is "nine hundred seventy-one million, seven hundred thirteen thousand, seven hundred seventy".