972561108 has 12 divisors (see below), whose sum is σ = 2269309280. Its totient is φ = 324187032.

The previous prime is 972561089. The next prime is 972561119. The reversal of 972561108 is 801165279.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40523368 + ... + 40523391.

Almost surely, 2^972561108 is an apocalyptic number.

It is an amenable number.

972561108 is an abundant number, since it is smaller than the sum of its proper divisors (1296748172).

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

972561108 is a wasteful number, since it uses less digits than its factorization.

972561108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81046766 (or 81046764 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 972561108 is about 31185.9120116760. The cubic root of 972561108 is about 990.7687488863.

The spelling of 972561108 in words is "nine hundred seventy-two million, five hundred sixty-one thousand, one hundred eight".