3887217 has 8 divisors (see below), whose sum is σ = 5758880. Its totient is φ = 2591460.

The previous prime is 3887197. The next prime is 3887227. The reversal of 3887217 is 7127883.

3887217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3887217 - 2¹⁰ = 3886193 is a prime.

It is a super-2 number, since 2×3887217² = 30220912010178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3887227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71959 + ... + 72012.

It is an arithmetic number, because the mean of its divisors is an integer number (719860).

Almost surely, 2^3887217 is an apocalyptic number.

It is an amenable number.

3887217 is a deficient number, since it is larger than the sum of its proper divisors (1871663).

3887217 is a wasteful number, since it uses less digits than its factorization.

3887217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143980 (or 143974 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 3887217 is about 1971.6026475941. The cubic root of 3887217 is about 157.2339271799.

The spelling of 3887217 in words is "three million, eight hundred eighty-seven thousand, two hundred seventeen".