3979999794 has 32 divisors (see below), whose sum is σ = 8297182656. Its totient is φ = 1271540160.

The previous prime is 3979999789. The next prime is 3979999799. The reversal of 3979999794 is 4979999793.

It is an interprime number because it is at equal distance from previous prime (3979999789) and next prime (3979999799).

It is not an unprimeable number, because it can be changed into a prime (3979999799) 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, 118917 + ... + 148664.

It is an arithmetic number, because the mean of its divisors is an integer number (259286958).

Almost surely, 2^3979999794 is an apocalyptic number.

3979999794 is an abundant number, since it is smaller than the sum of its proper divisors (4317182862).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3979999794 is a wasteful number, since it uses less digits than its factorization.

3979999794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267690.

The product of its digits is 312487308, while the sum is 75.

The square root of 3979999794 is about 63087.2395496902. The cubic root of 3979999794 is about 1584.7509344698.

Subtracting 3979999794 from its reverse (4979999793), we obtain a palindrome (999999999).

The spelling of 3979999794 in words is "three billion, nine hundred seventy-nine million, nine hundred ninety-nine thousand, seven hundred ninety-four".