3872205 has 24 divisors (see below), whose sum is σ = 6962592. Its totient is φ = 2064528.

The previous prime is 3872203. The next prime is 3872207. The reversal of 3872205 is 5022783.

It is an interprime number because it is at equal distance from previous prime (3872203) and next prime (3872207).

It is not a de Polignac number, because 3872205 - 2¹ = 3872203 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3872201) 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 23 ways as a sum of consecutive naturals, for example, 379 + ... + 2808.

It is an arithmetic number, because the mean of its divisors is an integer number (290108).

Almost surely, 2^3872205 is an apocalyptic number.

It is an amenable number.

3872205 is a deficient number, since it is larger than the sum of its proper divisors (3090387).

3872205 is an equidigital number, since it uses as much as digits as its factorization.

3872205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207 (or 3195 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3872205 is about 1967.7919097303. The cubic root of 3872205 is about 157.0312594119.

Adding to 3872205 its reverse (5022783), we get a palindrome (8894988).

The spelling of 3872205 in words is "three million, eight hundred seventy-two thousand, two hundred five".