3965601 has 4 divisors (see below), whose sum is σ = 5287472. Its totient is φ = 2643732.

The previous prime is 3965587. The next prime is 3965617. The reversal of 3965601 is 1065693.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3965601 - 2⁵ = 3965569 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3965681) 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, 660931 + ... + 660936.

It is an arithmetic number, because the mean of its divisors is an integer number (1321868).

Almost surely, 2^3965601 is an apocalyptic number.

It is an amenable number.

3965601 is a deficient number, since it is larger than the sum of its proper divisors (1321871).

3965601 is a wasteful number, since it uses less digits than its factorization.

3965601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321870.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 3965601 is about 1991.3816811450. The cubic root of 3965601 is about 158.2837527739.

The spelling of 3965601 in words is "three million, nine hundred sixty-five thousand, six hundred one".