3870217 has 8 divisors (see below), whose sum is σ = 4183424. Its totient is φ = 3559248.

The previous prime is 3870211. The next prime is 3870227. The reversal of 3870217 is 7120783.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3870217 - 2¹¹ = 3868169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3870211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5698 + ... + 6340.

It is an arithmetic number, because the mean of its divisors is an integer number (522928).

Almost surely, 2^3870217 is an apocalyptic number.

It is an amenable number.

3870217 is a deficient number, since it is larger than the sum of its proper divisors (313207).

3870217 is a wasteful number, since it uses less digits than its factorization.

3870217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 3870217 is about 1967.2867101671. The cubic root of 3870217 is about 157.0043813942.

The spelling of 3870217 in words is "three million, eight hundred seventy thousand, two hundred seventeen".