3861222 has 16 divisors (see below), whose sum is σ = 7746672. Its totient is φ = 1283040.

The previous prime is 3861211. The next prime is 3861223. The reversal of 3861222 is 2221683.

It is a junction number, because it is equal to n+sod(n) for n = 3861192 and 3861201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3861223) 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, 1572 + ... + 3192.

It is an arithmetic number, because the mean of its divisors is an integer number (484167).

Almost surely, 2^3861222 is an apocalyptic number.

3861222 is an abundant number, since it is smaller than the sum of its proper divisors (3885450).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3861222 is a wasteful number, since it uses less digits than its factorization.

3861222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2023.

The product of its digits is 1152, while the sum is 24.

The square root of 3861222 is about 1964.9992366411. Note that the first 3 decimals coincide. The cubic root of 3861222 is about 156.8826526534.

The spelling of 3861222 in words is "three million, eight hundred sixty-one thousand, two hundred twenty-two".