3986069 has 4 divisors (see below), whose sum is σ = 3991596. Its totient is φ = 3980544.

The previous prime is 3986063. The next prime is 3986111. The reversal of 3986069 is 9606893.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9606893 = 23 ⋅417691.

It can be written as a sum of positive squares in 2 ways, for example, as 2067844 + 1918225 = 1438^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 3986069 - 2¹² = 3981973 is a prime.

It is a super-2 number, since 2×3986069² = 31777492145522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3986063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (997899).

Almost surely, 2^3986069 is an apocalyptic number.

It is an amenable number.

3986069 is a deficient number, since it is larger than the sum of its proper divisors (5527).

3986069 is an equidigital number, since it uses as much as digits as its factorization.

3986069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5526.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 3986069 is about 1996.5142123211. The cubic root of 3986069 is about 158.5556068097. Note that the first 3 decimals are identical.

The spelling of 3986069 in words is "three million, nine hundred eighty-six thousand, sixty-nine".