3988541 has 2 divisors, whose sum is σ = 3988542. Its totient is φ = 3988540.

The previous prime is 3988531. The next prime is 3988583. The reversal of 3988541 is 1458893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3076516 + 912025 = 1754^2 + 955^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988541 - 2⁶ = 3988477 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3988495 and 3988504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3988531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994270 + 1994271.

It is an arithmetic number, because the mean of its divisors is an integer number (1994271).

Almost surely, 2^3988541 is an apocalyptic number.

It is an amenable number.

3988541 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988541 is an equidigital number, since it uses as much as digits as its factorization.

3988541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 3988541 is about 1997.1331953578. The cubic root of 3988541 is about 158.5883766442.

The spelling of 3988541 in words is "three million, nine hundred eighty-eight thousand, five hundred forty-one".