3999753993 has 8 divisors (see below), whose sum is σ = 5340224800. Its totient is φ = 2662892928.

The previous prime is 3999753977. The next prime is 3999754001. The reversal of 3999753993 is 3993579993.

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

It is not a de Polignac number, because 3999753993 - 2⁴ = 3999753977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3999753913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 899848 + ... + 904281.

It is an arithmetic number, because the mean of its divisors is an integer number (667528100).

Almost surely, 2^3999753993 is an apocalyptic number.

It is an amenable number.

3999753993 is a deficient number, since it is larger than the sum of its proper divisors (1340470807).

3999753993 is a wasteful number, since it uses less digits than its factorization.

3999753993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1804871.

The product of its digits is 55801305, while the sum is 66.

The square root of 3999753993 is about 63243.6083173628. The cubic root of 3999753993 is about 1587.3685086535.

The spelling of 3999753993 in words is "three billion, nine hundred ninety-nine million, seven hundred fifty-three thousand, nine hundred ninety-three".