3965011 has 4 divisors (see below), whose sum is σ = 3969000. Its totient is φ = 3961024.

The previous prime is 3964973. The next prime is 3965021. The reversal of 3965011 is 1105693.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3965011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3965021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840 + ... + 2938.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^3965011 is an apocalyptic number.

3965011 is a deficient number, since it is larger than the sum of its proper divisors (3989).

3965011 is a wasteful number, since it uses less digits than its factorization.

3965011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 3965011 is about 1991.2335372829. The cubic root of 3965011 is about 158.2759025938.

The spelling of 3965011 in words is "three million, nine hundred sixty-five thousand, eleven".