3870287 has 4 divisors (see below), whose sum is σ = 3876240. Its totient is φ = 3864336.

The previous prime is 3870283. The next prime is 3870299. The reversal of 3870287 is 7820783.

It is a happy number.

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 3870287 - 2² = 3870283 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3870283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1862 + ... + 3347.

It is an arithmetic number, because the mean of its divisors is an integer number (969060).

Almost surely, 2^3870287 is an apocalyptic number.

3870287 is a deficient number, since it is larger than the sum of its proper divisors (5953).

3870287 is an equidigital number, since it uses as much as digits as its factorization.

3870287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5952.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 3870287 is about 1967.3045010877. The cubic root of 3870287 is about 157.0053279596.

The spelling of 3870287 in words is "three million, eight hundred seventy thousand, two hundred eighty-seven".