3988477 has 2 divisors, whose sum is σ = 3988478. Its totient is φ = 3988476.

The previous prime is 3988471. The next prime is 3988487. The reversal of 3988477 is 7748893.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2709316 + 1279161 = 1646^2 + 1131^2 .

It is an emirp because it is prime and its reverse (7748893) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3988477 - 2¹⁵ = 3955709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3988471) 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, 1994238 + 1994239.

It is an arithmetic number, because the mean of its divisors is an integer number (1994239).

Almost surely, 2^3988477 is an apocalyptic number.

It is an amenable number.

3988477 is a deficient number, since it is larger than the sum of its proper divisors (1).

3988477 is an equidigital number, since it uses as much as digits as its factorization.

3988477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 338688, while the sum is 46.

The square root of 3988477 is about 1997.1171723262. The cubic root of 3988477 is about 158.5875284050.

It can be divided in two parts, 3988 and 477, that added together give a triangular number (4465 = T₉₄).

The spelling of 3988477 in words is "three million, nine hundred eighty-eight thousand, four hundred seventy-seven".