3929879 has 2 divisors, whose sum is σ = 3929880. Its totient is φ = 3929878.

The previous prime is 3929857. The next prime is 3929917. The reversal of 3929879 is 9789293.

It is a weak prime.

It is an emirp because it is prime and its reverse (9789293) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3929879 - 2¹² = 3925783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3929479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1964939 + 1964940.

It is an arithmetic number, because the mean of its divisors is an integer number (1964940).

Almost surely, 2^3929879 is an apocalyptic number.

3929879 is a deficient number, since it is larger than the sum of its proper divisors (1).

3929879 is an equidigital number, since it uses as much as digits as its factorization.

3929879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 244944, while the sum is 47.

The square root of 3929879 is about 1982.3922417120. The cubic root of 3929879 is about 157.8070469442.

The spelling of 3929879 in words is "three million, nine hundred twenty-nine thousand, eight hundred seventy-nine".