3965761 has 4 divisors (see below), whose sum is σ = 4058032. Its totient is φ = 3873492.

The previous prime is 3965723. The next prime is 3965783. The reversal of 3965761 is 1675693.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1675693 = 37 ⋅45289.

It is a cyclic number.

It is not a de Polignac number, because 3965761 - 2¹⁵ = 3932993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3965761.

It is not an unprimeable number, because it can be changed into a prime (3965701) 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, 46071 + ... + 46156.

It is an arithmetic number, because the mean of its divisors is an integer number (1014508).

Almost surely, 2^3965761 is an apocalyptic number.

It is an amenable number.

3965761 is a deficient number, since it is larger than the sum of its proper divisors (92271).

3965761 is an equidigital number, since it uses as much as digits as its factorization.

3965761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92270.

The product of its digits is 34020, while the sum is 37.

The square root of 3965761 is about 1991.4218538522. The cubic root of 3965761 is about 158.2858815021.

The spelling of 3965761 in words is "three million, nine hundred sixty-five thousand, seven hundred sixty-one".