3965745 has 32 divisors (see below), whose sum is σ = 7326720. Its totient is φ = 1794240.

The previous prime is 3965723. The next prime is 3965783. The reversal of 3965745 is 5475693.

3965745 is nontrivially palindromic in base 14.

It is not a de Polignac number, because 3965745 - 2⁶ = 3965681 is a prime.

It is a d-powerful number, because it can be written as 3¹⁰ + 9² + 6 + 5⁹ + 7³ + 4² + 5⁹ .

Its product of digits (113400) is a multiple of the sum of its prime divisors (405).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18690 + ... + 18900.

It is an arithmetic number, because the mean of its divisors is an integer number (228960).

Almost surely, 2^3965745 is an apocalyptic number.

3965745 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3965745 is a deficient number, since it is larger than the sum of its proper divisors (3360975).

3965745 is a wasteful number, since it uses less digits than its factorization.

3965745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its digits is 113400, while the sum is 39.

The square root of 3965745 is about 1991.4178366179. The cubic root of 3965745 is about 158.2856686318.

The spelling of 3965745 in words is "three million, nine hundred sixty-five thousand, seven hundred forty-five".