3765389 has 4 divisors (see below), whose sum is σ = 3895260. Its totient is φ = 3635520.

The previous prime is 3765383. The next prime is 3765397. The reversal of 3765389 is 9835673.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2301289 + 1464100 = 1517^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 3765389 - 2⁴ = 3765373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3765383) 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, 64892 + ... + 64949.

It is an arithmetic number, because the mean of its divisors is an integer number (973815).

Almost surely, 2^3765389 is an apocalyptic number.

It is an amenable number.

3765389 is a deficient number, since it is larger than the sum of its proper divisors (129871).

3765389 is a wasteful number, since it uses less digits than its factorization.

3765389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129870.

The product of its digits is 136080, while the sum is 41.

The square root of 3765389 is about 1940.4610276942. The cubic root of 3765389 is about 155.5738561425.

The spelling of 3765389 in words is "three million, seven hundred sixty-five thousand, three hundred eighty-nine".