9071972 has 24 divisors (see below), whose sum is σ = 19540416. Its totient is φ = 3588768.

The previous prime is 9071971. The next prime is 9071977. The reversal of 9071972 is 2791709.

It is a Smith number, since the sum of its digits (35) 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 (9071971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12098 + ... + 12825.

It is an arithmetic number, because the mean of its divisors is an integer number (814184).

Almost surely, 2^9071972 is an apocalyptic number.

It is an amenable number.

9071972 is an abundant number, since it is smaller than the sum of its proper divisors (10468444).

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

9071972 is a wasteful number, since it uses less digits than its factorization.

9071972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24947 (or 24945 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 9071972 is about 3011.9714474078. The cubic root of 9071972 is about 208.5613841234.

The spelling of 9071972 in words is "nine million, seventy-one thousand, nine hundred seventy-two".