9797988379 has 4 divisors (see below), whose sum is σ = 9798194584. Its totient is φ = 9797782176.

The previous prime is 9797988367. The next prime is 9797988391. The reversal of 9797988379 is 9738897979.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9797988367) and next prime (9797988391).

It is a cyclic number.

It is not a de Polignac number, because 9797988379 - 2²¹ = 9795891227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9797988359) 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 3 ways as a sum of consecutive naturals, for example, 8284 + ... + 140230.

It is an arithmetic number, because the mean of its divisors is an integer number (2449548646).

Almost surely, 2^9797988379 is an apocalyptic number.

9797988379 is a deficient number, since it is larger than the sum of its proper divisors (206205).

9797988379 is a wasteful number, since it uses less digits than its factorization.

9797988379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206204.

The product of its digits is 432081216, while the sum is 76.

The square root of 9797988379 is about 98984.7886243134. The cubic root of 9797988379 is about 2139.8285287100.

The spelling of 9797988379 in words is "nine billion, seven hundred ninety-seven million, nine hundred eighty-eight thousand, three hundred seventy-nine".