9219797406 has 16 divisors (see below), whose sum is σ = 20488438800. Its totient is φ = 3073265784.

The previous prime is 9219797393. The next prime is 9219797407. The reversal of 9219797406 is 6047979129.

9219797406 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 (54), and also a Moran number because the ratio is a prime number: 170736989 = 9219797406 / (9 + 2 + 1 + 9 + 7 + 9 + 7 + 4 + 0 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9219797407) 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 7 ways as a sum of consecutive naturals, for example, 85368441 + ... + 85368548.

It is an arithmetic number, because the mean of its divisors is an integer number (1280527425).

Almost surely, 2^9219797406 is an apocalyptic number.

9219797406 is an abundant number, since it is smaller than the sum of its proper divisors (11268641394).

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

9219797406 is a wasteful number, since it uses less digits than its factorization.

9219797406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170737000 (or 170736994 counting only the distinct ones).

The product of its (nonzero) digits is 1714608, while the sum is 54.

The square root of 9219797406 is about 96019.7761192974. The cubic root of 9219797406 is about 2096.8810393403.

The spelling of 9219797406 in words is "nine billion, two hundred nineteen million, seven hundred ninety-seven thousand, four hundred six".