3540865 has 16 divisors (see below), whose sum is σ = 4395600. Its totient is φ = 2737152.

The previous prime is 3540829. The next prime is 3540893. The reversal of 3540865 is 5680453.

It can be written as a sum of positive squares in 8 ways, for example, as 36481 + 3504384 = 191^2 + 1872^2 .

It is a cyclic number.

It is not a de Polignac number, because 3540865 - 2¹³ = 3532673 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32431 + ... + 32539.

It is an arithmetic number, because the mean of its divisors is an integer number (274725).

Almost surely, 2^3540865 is an apocalyptic number.

It is an amenable number.

3540865 is a deficient number, since it is larger than the sum of its proper divisors (854735).

3540865 is a wasteful number, since it uses less digits than its factorization.

3540865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 3540865 is about 1881.7186293386. The cubic root of 3540865 is about 152.4180694011.

The spelling of 3540865 in words is "three million, five hundred forty thousand, eight hundred sixty-five".