3930841 has 2 divisors, whose sum is σ = 3930842. Its totient is φ = 3930840.

The previous prime is 3930827. The next prime is 3930869. The reversal of 3930841 is 1480393.

It is an a-pointer prime, because the next prime (3930869) can be obtained adding 3930841 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3916441 + 14400 = 1979^2 + 120^2 .

It is an emirp because it is prime and its reverse (1480393) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3930841 - 2¹⁵ = 3898073 is a prime.

It is not a weakly prime, because it can be changed into another prime (3930811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1965420 + 1965421.

It is an arithmetic number, because the mean of its divisors is an integer number (1965421).

Almost surely, 2^3930841 is an apocalyptic number.

It is an amenable number.

3930841 is a deficient number, since it is larger than the sum of its proper divisors (1).

3930841 is an equidigital number, since it uses as much as digits as its factorization.

3930841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 3930841 is about 1982.6348630043. The cubic root of 3930841 is about 157.8199224885.

The spelling of 3930841 in words is "three million, nine hundred thirty thousand, eight hundred forty-one".