3925843 has 2 divisors, whose sum is σ = 3925844. Its totient is φ = 3925842.

The previous prime is 3925841. The next prime is 3925877. The reversal of 3925843 is 3485293.

It is a happy number.

It is an a-pointer prime, because the next prime (3925877) can be obtained adding 3925843 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3925843 - 2¹ = 3925841 is a prime.

Together with 3925841, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 3925799 and 3925808.

It is not a weakly prime, because it can be changed into another prime (3925841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1962921 + 1962922.

It is an arithmetic number, because the mean of its divisors is an integer number (1962922).

Almost surely, 2^3925843 is an apocalyptic number.

3925843 is a deficient number, since it is larger than the sum of its proper divisors (1).

3925843 is an equidigital number, since it uses as much as digits as its factorization.

3925843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 34.

The square root of 3925843 is about 1981.3740182005. The cubic root of 3925843 is about 157.7530056364.

The spelling of 3925843 in words is "three million, nine hundred twenty-five thousand, eight hundred forty-three".