3958847 has 2 divisors, whose sum is σ = 3958848. Its totient is φ = 3958846.

The previous prime is 3958831. The next prime is 3958879. The reversal of 3958847 is 7488593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3958847 - 2⁴ = 3958831 is a prime.

It is a Chen prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 3958798 and 3958807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3958817) 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, 1979423 + 1979424.

It is an arithmetic number, because the mean of its divisors is an integer number (1979424).

Almost surely, 2^3958847 is an apocalyptic number.

3958847 is a deficient number, since it is larger than the sum of its proper divisors (1).

3958847 is an equidigital number, since it uses as much as digits as its factorization.

3958847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 3958847 is about 1989.6851509724. The cubic root of 3958847 is about 158.1938415636.

The spelling of 3958847 in words is "three million, nine hundred fifty-eight thousand, eight hundred forty-seven".