3979543 has 2 divisors, whose sum is σ = 3979544. Its totient is φ = 3979542.

The previous prime is 3979523. The next prime is 3979553. The reversal of 3979543 is 3459793.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3979543 - 2⁵ = 3979511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3979496 and 3979505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3979523) 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, 1989771 + 1989772.

It is an arithmetic number, because the mean of its divisors is an integer number (1989772).

Almost surely, 2^3979543 is an apocalyptic number.

3979543 is a deficient number, since it is larger than the sum of its proper divisors (1).

3979543 is an equidigital number, since it uses as much as digits as its factorization.

3979543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 40.

The square root of 3979543 is about 1994.8791943373. The cubic root of 3979543 is about 158.4690303611.

The spelling of 3979543 in words is "three million, nine hundred seventy-nine thousand, five hundred forty-three".