3986996893 has 48 divisors (see below), whose sum is σ = 4979589120. Its totient is φ = 3155961600.

The previous prime is 3986996891. The next prime is 3986996933.

3986996893 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 3986996893 - 2¹ = 3986996891 is a prime.

It is a super-2 number, since 2×3986996893² = 31792288449583306898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986996891) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2265748 + ... + 2267506.

It is an arithmetic number, because the mean of its divisors is an integer number (103741440).

Almost surely, 2^3986996893 is an apocalyptic number.

It is an amenable number.

3986996893 is a deficient number, since it is larger than the sum of its proper divisors (992592227).

3986996893 is a wasteful number, since it uses less digits than its factorization.

3986996893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858 (or 1841 counting only the distinct ones).

The product of its digits is 136048896, while the sum is 70.

The square root of 3986996893 is about 63142.6709365386. The cubic root of 3986996893 is about 1585.6790892351.

The spelling of 3986996893 in words is "three billion, nine hundred eighty-six million, nine hundred ninety-six thousand, eight hundred ninety-three".