3944463799 has 4 divisors (see below), whose sum is σ = 3944780064. Its totient is φ = 3944147536.

The previous prime is 3944463749. The next prime is 3944463833. The reversal of 3944463799 is 9973644493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9973644493 = 433 ⋅23033821.

It is a cyclic number.

It is not a de Polignac number, because 3944463799 - 2¹⁷ = 3944332727 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 (3944463749) 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, 138622 + ... + 164635.

It is an arithmetic number, because the mean of its divisors is an integer number (986195016).

Almost surely, 2^3944463799 is an apocalyptic number.

3944463799 is a deficient number, since it is larger than the sum of its proper divisors (316265).

3944463799 is a wasteful number, since it uses less digits than its factorization.

3944463799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316264.

The product of its digits is 17635968, while the sum is 58.

The square root of 3944463799 is about 62804.9663561728. The cubic root of 3944463799 is about 1580.0202687941.

The spelling of 3944463799 in words is "three billion, nine hundred forty-four million, four hundred sixty-three thousand, seven hundred ninety-nine".