3090565 has 8 divisors (see below), whose sum is σ = 3769848. Its totient is φ = 2431680.

The previous prime is 3090551. The next prime is 3090587. The reversal of 3090565 is 5650903.

It is a happy number.

It is a Cunningham number, because it is equal to 1758²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 101124 + 2989441 = 318^2 + 1729^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3090565 - 2¹¹ = 3088517 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4762 + ... + 5371.

It is an arithmetic number, because the mean of its divisors is an integer number (471231).

Almost surely, 2^3090565 is an apocalyptic number.

It is an amenable number.

3090565 is a deficient number, since it is larger than the sum of its proper divisors (679283).

3090565 is a wasteful number, since it uses less digits than its factorization.

3090565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 3090565 is about 1758.0002844141. Note that the first 3 decimals coincide. The cubic root of 3090565 is about 145.6618966845.

It can be divided in two parts, 3090 and 565, that added together give a triangular number (3655 = T₈₅).

The spelling of 3090565 in words is "three million, ninety thousand, five hundred sixty-five".