9797720326 has 8 divisors (see below), whose sum is σ = 14937508224. Its totient is φ = 4818550920.

The previous prime is 9797720321. The next prime is 9797720327. The reversal of 9797720326 is 6230277979.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9797720321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40154470 + ... + 40154713.

It is an arithmetic number, because the mean of its divisors is an integer number (1867188528).

Almost surely, 2^9797720326 is an apocalyptic number.

9797720326 is a deficient number, since it is larger than the sum of its proper divisors (5139787898).

9797720326 is a wasteful number, since it uses less digits than its factorization.

9797720326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80309246.

The product of its (nonzero) digits is 2000376, while the sum is 52.

The square root of 9797720326 is about 98983.4346039781. The cubic root of 9797720326 is about 2139.8090147491.

The spelling of 9797720326 in words is "nine billion, seven hundred ninety-seven million, seven hundred twenty thousand, three hundred twenty-six".