972218860 has 24 divisors (see below), whose sum is σ = 2045259216. Its totient is φ = 388201920.

The previous prime is 972218839. The next prime is 972218861. The reversal of 972218860 is 68812279.

It is not an unprimeable number, because it can be changed into a prime (972218861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31147 + ... + 53986.

It is an arithmetic number, because the mean of its divisors is an integer number (85219134).

Almost surely, 2^972218860 is an apocalyptic number.

It is an amenable number.

972218860 is an abundant number, since it is smaller than the sum of its proper divisors (1073040356).

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

972218860 is a wasteful number, since it uses less digits than its factorization.

972218860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85713 (or 85711 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 972218860 is about 31180.4243075684. The cubic root of 972218860 is about 990.6525168047.

It can be divided in two parts, 9722 and 18860, that added together give a palindrome (28582).

The spelling of 972218860 in words is "nine hundred seventy-two million, two hundred eighteen thousand, eight hundred sixty".