971272272 has 20 divisors (see below), whose sum is σ = 2509120160. Its totient is φ = 323757408.

The previous prime is 971272243. The next prime is 971272279. The reversal of 971272272 is 272272179.

It is a self number, because there is not a number n which added to its sum of digits gives 971272272.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (971272279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10117372 + ... + 10117467.

It is an arithmetic number, because the mean of its divisors is an integer number (125456008).

Almost surely, 2^971272272 is an apocalyptic number.

It is an amenable number.

971272272 is an abundant number, since it is smaller than the sum of its proper divisors (1537847888).

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

971272272 is a wasteful number, since it uses less digits than its factorization.

971272272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20234850 (or 20234844 counting only the distinct ones).

The product of its digits is 49392, while the sum is 39.

The square root of 971272272 is about 31165.2414076965. The cubic root of 971272272 is about 990.3309005078.

It can be divided in two parts, 97127 and 2272, that added together give a palindrome (99399).

The spelling of 971272272 in words is "nine hundred seventy-one million, two hundred seventy-two thousand, two hundred seventy-two".