9878397296 has 20 divisors (see below), whose sum is σ = 19261306632. Its totient is φ = 4907737536.

The previous prime is 9878397289. The next prime is 9878397299. The reversal of 9878397296 is 6927938789.

It is a super-2 number, since 2×9878397296² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9878397299) 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, 1963730 + ... + 1968753.

Almost surely, 2^9878397296 is an apocalyptic number.

It is an amenable number.

9878397296 is a deficient number, since it is larger than the sum of its proper divisors (9382909336).

9878397296 is a wasteful number, since it uses less digits than its factorization.

9878397296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932648 (or 3932642 counting only the distinct ones).

The product of its digits is 82301184, while the sum is 68.

The square root of 9878397296 is about 99390.1267531137. The cubic root of 9878397296 is about 2145.6662149252. Note that the first 3 decimals are identical.

The spelling of 9878397296 in words is "nine billion, eight hundred seventy-eight million, three hundred ninety-seven thousand, two hundred ninety-six".