3962865 has 24 divisors (see below), whose sum is σ = 6537024. Its totient is φ = 2049600.

The previous prime is 3962857. The next prime is 3962867. The reversal of 3962865 is 5682693.

It is not a de Polignac number, because 3962865 - 2³ = 3962857 is a prime.

It is a d-powerful number, because it can be written as 3¹¹ + 9⁴ + 6³ + 2¹¹ + 8⁷ + 6⁸ + 5³ .

It is not an unprimeable number, because it can be changed into a prime (3962867) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55780 + ... + 55850.

It is an arithmetic number, because the mean of its divisors is an integer number (272376).

Almost surely, 2^3962865 is an apocalyptic number.

It is an amenable number.

3962865 is a deficient number, since it is larger than the sum of its proper divisors (2574159).

3962865 is an equidigital number, since it uses as much as digits as its factorization.

3962865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201 (or 140 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 3962865 is about 1990.6946023938. The cubic root of 3962865 is about 158.2473426576.

It can be divided in two parts, 39628 and 65, that added together give a palindrome (39693).

The spelling of 3962865 in words is "three million, nine hundred sixty-two thousand, eight hundred sixty-five".