3964205 has 16 divisors (see below), whose sum is σ = 5474304. Its totient is φ = 2699520.

The previous prime is 3964201. The next prime is 3964229. The reversal of 3964205 is 5024693.

It is not a de Polignac number, because 3964205 - 2² = 3964201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6389 + ... + 6981.

It is an arithmetic number, because the mean of its divisors is an integer number (342144).

Almost surely, 2^3964205 is an apocalyptic number.

3964205 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3964205 is a deficient number, since it is larger than the sum of its proper divisors (1510099).

3964205 is a wasteful number, since it uses less digits than its factorization.

3964205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 3964205 is about 1991.0311398871. The cubic root of 3964205 is about 158.2651771908.

Adding to 3964205 its reverse (5024693), we get a palindrome (8988898).

The spelling of 3964205 in words is "three million, nine hundred sixty-four thousand, two hundred five".