971308356 has 12 divisors (see below), whose sum is σ = 2266386192. Its totient is φ = 323769448.

The previous prime is 971308343. The next prime is 971308357. The reversal of 971308356 is 653803179.

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

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (971308357) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 40471170 + ... + 40471193.

It is an arithmetic number, because the mean of its divisors is an integer number (188865516).

Almost surely, 2^971308356 is an apocalyptic number.

It is an amenable number.

971308356 is an abundant number, since it is smaller than the sum of its proper divisors (1295077836).

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

971308356 is a wasteful number, since it uses less digits than its factorization.

971308356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80942370 (or 80942368 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 971308356 is about 31165.8203164942. The cubic root of 971308356 is about 990.3431643734.

The spelling of 971308356 in words is "nine hundred seventy-one million, three hundred eight thousand, three hundred fifty-six".