3918379 has 2 divisors, whose sum is σ = 3918380. Its totient is φ = 3918378.

The previous prime is 3918377. The next prime is 3918391. The reversal of 3918379 is 9738193.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3918379 - 2¹ = 3918377 is a prime.

Together with 3918377, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3918377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1959189 + 1959190.

It is an arithmetic number, because the mean of its divisors is an integer number (1959190).

Almost surely, 2^3918379 is an apocalyptic number.

3918379 is a deficient number, since it is larger than the sum of its proper divisors (1).

3918379 is an equidigital number, since it uses as much as digits as its factorization.

3918379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 3918379 is about 1979.4895806748. The cubic root of 3918379 is about 157.6529663631.

The spelling of 3918379 in words is "three million, nine hundred eighteen thousand, three hundred seventy-nine".