9072197806 has 12 divisors (see below), whose sum is σ = 15830059608. Its totient is φ = 3888084732.

The previous prime is 9072197801. The next prime is 9072197807. The reversal of 9072197806 is 6087912709.

It is a happy number.

9072197806 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 9072197806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9072197801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46286626 + ... + 46286821.

It is an arithmetic number, because the mean of its divisors is an integer number (1319171634).

Almost surely, 2^9072197806 is an apocalyptic number.

9072197806 is a deficient number, since it is larger than the sum of its proper divisors (6757861802).

9072197806 is a wasteful number, since it uses less digits than its factorization.

9072197806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92573463 (or 92573456 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 49.

The square root of 9072197806 is about 95248.0855765616. The cubic root of 9072197806 is about 2085.6311450873.

The spelling of 9072197806 in words is "nine billion, seventy-two million, one hundred ninety-seven thousand, eight hundred six".