97971108 has 12 divisors (see below), whose sum is σ = 228599280. Its totient is φ = 32657032.

The previous prime is 97971103. The next prime is 97971109. The reversal of 97971108 is 80117979.

It is a happy number.

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 a self number, because there is not a number n which added to its sum of digits gives 97971108.

It is not an unprimeable number, because it can be changed into a prime (97971103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4082118 + ... + 4082141.

It is an arithmetic number, because the mean of its divisors is an integer number (19049940).

Almost surely, 2^97971108 is an apocalyptic number.

It is an amenable number.

97971108 is an abundant number, since it is smaller than the sum of its proper divisors (130628172).

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

97971108 is a wasteful number, since it uses less digits than its factorization.

97971108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8164266 (or 8164264 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 42.

The square root of 97971108 is about 9898.0355626761. The cubic root of 97971108 is about 460.9983170229.

The spelling of 97971108 in words is "ninety-seven million, nine hundred seventy-one thousand, one hundred eight".