3865122 has 12 divisors (see below), whose sum is σ = 8374470. Its totient is φ = 1288368.

The previous prime is 3865117. The next prime is 3865123. The reversal of 3865122 is 2215683.

3865122 is a `hidden beast` number, since 3 + 8 + 651 + 2 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3316041 + 549081 = 1821^2 + 741^2 .

It is not an unprimeable number, because it can be changed into a prime (3865123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 107347 + ... + 107382.

Almost surely, 2^3865122 is an apocalyptic number.

3865122 is an abundant number, since it is smaller than the sum of its proper divisors (4509348).

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

3865122 is a wasteful number, since it uses less digits than its factorization.

3865122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214737 (or 214734 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 3865122 is about 1965.9913529820. The cubic root of 3865122 is about 156.9354542850.

The spelling of 3865122 in words is "three million, eight hundred sixty-five thousand, one hundred twenty-two".