3948541 has 2 divisors, whose sum is σ = 3948542. Its totient is φ = 3948540.

The previous prime is 3948533. The next prime is 3948547. The reversal of 3948541 is 1458493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3437316 + 511225 = 1854^2 + 715^2 .

It is a cyclic number.

It is not a de Polignac number, because 3948541 - 2³ = 3948533 is a prime.

3948541 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3948497 and 3948506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3948547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974270 + 1974271.

It is an arithmetic number, because the mean of its divisors is an integer number (1974271).

Almost surely, 2^3948541 is an apocalyptic number.

It is an amenable number.

3948541 is a deficient number, since it is larger than the sum of its proper divisors (1).

3948541 is an equidigital number, since it uses as much as digits as its factorization.

3948541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 3948541 is about 1987.0936062501. The cubic root of 3948541 is about 158.0564478114.

It can be divided in two parts, 3948 and 541, that added together give a square (4489 = 67²).

The spelling of 3948541 in words is "three million, nine hundred forty-eight thousand, five hundred forty-one".