3979418685 has 32 divisors (see below), whose sum is σ = 7014695040. Its totient is φ = 1910304000.

The previous prime is 3979418671. The next prime is 3979418689. The reversal of 3979418685 is 5868149793.

It is not a de Polignac number, because 3979418685 - 2¹³ = 3979410493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3979418689) 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 31 ways as a sum of consecutive naturals, for example, 102730 + ... + 136059.

It is an arithmetic number, because the mean of its divisors is an integer number (219209220).

Almost surely, 2^3979418685 is an apocalyptic number.

It is an amenable number.

3979418685 is a deficient number, since it is larger than the sum of its proper divisors (3035276355).

3979418685 is a wasteful number, since it uses less digits than its factorization.

3979418685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238909.

The product of its digits is 13063680, while the sum is 60.

The square root of 3979418685 is about 63082.6337829993. The cubic root of 3979418685 is about 1584.6738023172.

The spelling of 3979418685 in words is "three billion, nine hundred seventy-nine million, four hundred eighteen thousand, six hundred eighty-five".