9797090399 has 4 divisors (see below), whose sum is σ = 10061876664. Its totient is φ = 9532304136.

The previous prime is 9797090377. The next prime is 9797090411. The reversal of 9797090399 is 9930907979.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9930907979 = 15329 ⋅647851.

It is a cyclic number.

It is not a de Polignac number, because 9797090399 - 2¹² = 9797086303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9797090309) 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, 132393077 + ... + 132393150.

It is an arithmetic number, because the mean of its divisors is an integer number (2515469166).

Almost surely, 2^9797090399 is an apocalyptic number.

9797090399 is a deficient number, since it is larger than the sum of its proper divisors (264786265).

9797090399 is a wasteful number, since it uses less digits than its factorization.

9797090399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264786264.

The product of its (nonzero) digits is 8680203, while the sum is 62.

The square root of 9797090399 is about 98980.2525709043. The cubic root of 9797090399 is about 2139.7631553615.

The spelling of 9797090399 in words is "nine billion, seven hundred ninety-seven million, ninety thousand, three hundred ninety-nine".