3988135 has 4 divisors (see below), whose sum is σ = 4785768. Its totient is φ = 3190504.

The previous prime is 3988129. The next prime is 3988147. The reversal of 3988135 is 5318893.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3988135 - 2⁷ = 3988007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3988094 and 3988103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398809 + ... + 398818.

It is an arithmetic number, because the mean of its divisors is an integer number (1196442).

Almost surely, 2^3988135 is an apocalyptic number.

3988135 is a deficient number, since it is larger than the sum of its proper divisors (797633).

3988135 is an equidigital number, since it uses as much as digits as its factorization.

3988135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797632.

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

The square root of 3988135 is about 1997.0315470718. The cubic root of 3988135 is about 158.5829954730.

The spelling of 3988135 in words is "three million, nine hundred eighty-eight thousand, one hundred thirty-five".