3988147 has 2 divisors, whose sum is σ = 3988148. Its totient is φ = 3988146.

The previous prime is 3988129. The next prime is 3988151. The reversal of 3988147 is 7418893.

It is a strong prime.

It is an emirp because it is prime and its reverse (7418893) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3988147 is a prime.

It is not a weakly prime, because it can be changed into another prime (3988247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1994073 + 1994074.

It is an arithmetic number, because the mean of its divisors is an integer number (1994074).

Almost surely, 2^3988147 is an apocalyptic number.

3988147 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988147 is an equidigital number, since it uses as much as digits as its factorization.

3988147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 40.

The square root of 3988147 is about 1997.0345515288. The cubic root of 3988147 is about 158.5831545277.

The spelling of 3988147 in words is "three million, nine hundred eighty-eight thousand, one hundred forty-seven".