3815065 has 4 divisors (see below), whose sum is σ = 4578084. Its totient is φ = 3052048.

The previous prime is 3815057. The next prime is 3815069. The reversal of 3815065 is 5605183.

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 1245456 + 2569609 = 1116^2 + 1603^2 .

It is a cyclic number.

It is not a de Polignac number, because 3815065 - 2³ = 3815057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3815069) 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, 381502 + ... + 381511.

It is an arithmetic number, because the mean of its divisors is an integer number (1144521).

Almost surely, 2^3815065 is an apocalyptic number.

It is an amenable number.

3815065 is a deficient number, since it is larger than the sum of its proper divisors (763019).

3815065 is an equidigital number, since it uses as much as digits as its factorization.

3815065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763018.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 3815065 is about 1953.2191377314. The cubic root of 3815065 is about 156.2550206387.

The spelling of 3815065 in words is "three million, eight hundred fifteen thousand, sixty-five".