3865087 has 4 divisors (see below), whose sum is σ = 3877096. Its totient is φ = 3853080.

The previous prime is 3865079. The next prime is 3865093. The reversal of 3865087 is 7805683.

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 3865087 - 2³ = 3865079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3865007) 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, 5508 + ... + 6169.

It is an arithmetic number, because the mean of its divisors is an integer number (969274).

Almost surely, 2^3865087 is an apocalyptic number.

3865087 is a deficient number, since it is larger than the sum of its proper divisors (12009).

3865087 is a wasteful number, since it uses less digits than its factorization.

3865087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12008.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 3865087 is about 1965.9824516002. The cubic root of 3865087 is about 156.9349805822.

The spelling of 3865087 in words is "three million, eight hundred sixty-five thousand, eighty-seven".