971670520 has 64 divisors (see below), whose sum is σ = 2266639200. Its totient is φ = 374438400.

The previous prime is 971670517. The next prime is 971670551. The reversal of 971670520 is 25076179.

It is a self number, because there is not a number n which added to its sum of digits gives 971670520.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923995 + ... + 925045.

Almost surely, 2^971670520 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 971670520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133319600).

971670520 is an abundant number, since it is smaller than the sum of its proper divisors (1294968680).

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

971670520 is a wasteful number, since it uses less digits than its factorization.

971670520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1888 (or 1884 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 971670520 is about 31171.6300504160. The cubic root of 971670520 is about 990.4662361974.

The spelling of 971670520 in words is "nine hundred seventy-one million, six hundred seventy thousand, five hundred twenty".