3988513 has 2 divisors, whose sum is σ = 3988514. Its totient is φ = 3988512.

The previous prime is 3988487. The next prime is 3988519. The reversal of 3988513 is 3158893.

3988513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3968064 + 20449 = 1992^2 + 143^2 .

It is a cyclic number.

It is not a de Polignac number, because 3988513 - 2²¹ = 1891361 is a prime.

It is not a weakly prime, because it can be changed into another prime (3988519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994256 + 1994257.

It is an arithmetic number, because the mean of its divisors is an integer number (1994257).

Almost surely, 2^3988513 is an apocalyptic number.

It is an amenable number.

3988513 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988513 is an equidigital number, since it uses as much as digits as its factorization.

3988513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 3988513 is about 1997.1261852973. The cubic root of 3988513 is about 158.5880055407.

It can be divided in two parts, 398 and 8513, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 3988513 in words is "three million, nine hundred eighty-eight thousand, five hundred thirteen".