3960865 has 8 divisors (see below), whose sum is σ = 4799808. Its totient is φ = 3137520.

The previous prime is 3960857. The next prime is 3960871. The reversal of 3960865 is 5680693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3960865 - 2³ = 3960857 is a prime.

It is a Duffinian number.

3960865 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3331 + ... + 4360.

It is an arithmetic number, because the mean of its divisors is an integer number (599976).

Almost surely, 2^3960865 is an apocalyptic number.

It is an amenable number.

3960865 is a deficient number, since it is larger than the sum of its proper divisors (838943).

3960865 is a wasteful number, since it uses less digits than its factorization.

3960865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7799.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 3960865 is about 1990.1922017735. The cubic root of 3960865 is about 158.2207164714.

The spelling of 3960865 in words is "three million, nine hundred sixty thousand, eight hundred sixty-five".