9993475829 has 2 divisors, whose sum is σ = 9993475830. Its totient is φ = 9993475828.

The previous prime is 9993475819. The next prime is 9993475837. The reversal of 9993475829 is 9285743999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9191056900 + 802418929 = 95870^2 + 28327^2 .

It is a cyclic number.

It is not a de Polignac number, because 9993475829 - 2⁸ = 9993475573 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9993475819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996737914 + 4996737915.

It is an arithmetic number, because the mean of its divisors is an integer number (4996737915).

Almost surely, 2^9993475829 is an apocalyptic number.

It is an amenable number.

9993475829 is a deficient number, since it is larger than the sum of its proper divisors (1).

9993475829 is an equidigital number, since it uses as much as digits as its factorization.

9993475829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44089920, while the sum is 65.

The square root of 9993475829 is about 99967.3738226628. The cubic root of 9993475829 is about 2153.9660580917.

The spelling of 9993475829 in words is "nine billion, nine hundred ninety-three million, four hundred seventy-five thousand, eight hundred twenty-nine".