3986115 has 16 divisors (see below), whose sum is σ = 7289088. Its totient is φ = 1822176.

The previous prime is 3986113. The next prime is 3986159. The reversal of 3986115 is 5116893.

It is not a de Polignac number, because 3986115 - 2¹ = 3986113 is a prime.

It is a super-2 number, since 2×3986115² = 31778225586450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3986111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18877 + ... + 19086.

It is an arithmetic number, because the mean of its divisors is an integer number (455568).

Almost surely, 2^3986115 is an apocalyptic number.

3986115 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3986115 is a deficient number, since it is larger than the sum of its proper divisors (3302973).

3986115 is a wasteful number, since it uses less digits than its factorization.

3986115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37978.

The product of its digits is 6480, while the sum is 33.

The square root of 3986115 is about 1996.5257323661. The cubic root of 3986115 is about 158.5562167281.

The spelling of 3986115 in words is "three million, nine hundred eighty-six thousand, one hundred fifteen".