3986236635 has 16 divisors (see below), whose sum is σ = 6378915840. Its totient is φ = 2125680480.

The previous prime is 3986236627. The next prime is 3986236733. The reversal of 3986236635 is 5366326893.

It is not a de Polignac number, because 3986236635 - 2³ = 3986236627 is a prime.

It is a super-2 number, since 2×3986236635² = 31780165020432246450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116550 + ... + 146820.

It is an arithmetic number, because the mean of its divisors is an integer number (398682240).

Almost surely, 2^3986236635 is an apocalyptic number.

3986236635 is a deficient number, since it is larger than the sum of its proper divisors (2392679205).

3986236635 is a wasteful number, since it uses less digits than its factorization.

3986236635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39058.

The product of its digits is 4199040, while the sum is 51.

The square root of 3986236635 is about 63136.6504892364. The cubic root of 3986236635 is about 1585.5782947542.

The spelling of 3986236635 in words is "three billion, nine hundred eighty-six million, two hundred thirty-six thousand, six hundred thirty-five".