3505765 has 8 divisors (see below), whose sum is σ = 4228128. Its totient is φ = 2790480.

The previous prime is 3505763. The next prime is 3505771. The reversal of 3505765 is 5675053.

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

It is not a de Polignac number, because 3505765 - 2¹ = 3505763 is a prime.

It is a Duffinian number.

3505765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3505763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 607 + ... + 2716.

It is an arithmetic number, because the mean of its divisors is an integer number (528516).

Almost surely, 2^3505765 is an apocalyptic number.

It is an amenable number.

3505765 is a deficient number, since it is larger than the sum of its proper divisors (722363).

3505765 is a wasteful number, since it uses less digits than its factorization.

3505765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3539.

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 3505765 is about 1872.3688205052. The cubic root of 3505765 is about 151.9127644634.

The spelling of 3505765 in words is "three million, five hundred five thousand, seven hundred sixty-five".