3999610993 has 8 divisors (see below), whose sum is σ = 4576903488. Its totient is φ = 3423798384.

The previous prime is 3999610981. The next prime is 3999610999. The reversal of 3999610993 is 3990169993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3999610993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3999610999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364171 + ... + 374992.

It is an arithmetic number, because the mean of its divisors is an integer number (572112936).

Almost surely, 2^3999610993 is an apocalyptic number.

It is an amenable number.

3999610993 is a deficient number, since it is larger than the sum of its proper divisors (577292495).

3999610993 is an equidigital number, since it uses as much as digits as its factorization.

3999610993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739943.

The product of its (nonzero) digits is 3188646, while the sum is 58.

The square root of 3999610993 is about 63242.4777582283. The cubic root of 3999610993 is about 1587.3495911232.

The spelling of 3999610993 in words is "three billion, nine hundred ninety-nine million, six hundred ten thousand, nine hundred ninety-three".