9971230399 has 16 divisors (see below), whose sum is σ = 11149941600. Its totient is φ = 8853699456.

The previous prime is 9971230391. The next prime is 9971230417. The reversal of 9971230399 is 9930321799.

It is a cyclic number.

It is not a de Polignac number, because 9971230399 - 2³ = 9971230391 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 (9971230391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52252 + ... + 150574.

It is an arithmetic number, because the mean of its divisors is an integer number (696871350).

Almost surely, 2^9971230399 is an apocalyptic number.

9971230399 is a deficient number, since it is larger than the sum of its proper divisors (1178711201).

9971230399 is a wasteful number, since it uses less digits than its factorization.

9971230399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98634.

The product of its (nonzero) digits is 826686, while the sum is 52.

The square root of 9971230399 is about 99856.0483846622. The cubic root of 9971230399 is about 2152.3666313076.

The spelling of 9971230399 in words is "nine billion, nine hundred seventy-one million, two hundred thirty thousand, three hundred ninety-nine".