3851211 has 16 divisors (see below), whose sum is σ = 6320384. Its totient is φ = 2031264.

The previous prime is 3851179. The next prime is 3851213. The reversal of 3851211 is 1121583.

It is not a de Polignac number, because 3851211 - 2⁵ = 3851179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (3851213) 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 15 ways as a sum of consecutive naturals, for example, 6781 + ... + 7326.

It is an arithmetic number, because the mean of its divisors is an integer number (395024).

Almost surely, 2^3851211 is an apocalyptic number.

3851211 is a deficient number, since it is larger than the sum of its proper divisors (2469173).

3851211 is a wasteful number, since it uses less digits than its factorization.

3851211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14130.

The product of its digits is 240, while the sum is 21.

The square root of 3851211 is about 1962.4502541466. The cubic root of 3851211 is about 156.7469519590.

Adding to 3851211 its reverse (1121583), we get a palindrome (4972794).

It can be divided in two parts, 385 and 1211, that added together give a triangular number (1596 = T₅₆).

The spelling of 3851211 in words is "three million, eight hundred fifty-one thousand, two hundred eleven".