3765913 has 4 divisors (see below), whose sum is σ = 3772800. Its totient is φ = 3759028.

The previous prime is 3765893. The next prime is 3765917. The reversal of 3765913 is 3195673.

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: 3195673 = 13 ⋅245821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3765913 is a prime.

It is a Duffinian number.

3765913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3765917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2545 + ... + 3742.

It is an arithmetic number, because the mean of its divisors is an integer number (943200).

Almost surely, 2^3765913 is an apocalyptic number.

It is an amenable number.

3765913 is a deficient number, since it is larger than the sum of its proper divisors (6887).

3765913 is an equidigital number, since it uses as much as digits as its factorization.

3765913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886.

The product of its digits is 17010, while the sum is 34.

The square root of 3765913 is about 1940.5960424571. The cubic root of 3765913 is about 155.5810724769.

The spelling of 3765913 in words is "three million, seven hundred sixty-five thousand, nine hundred thirteen".