3509965 has 8 divisors (see below), whose sum is σ = 4433760. Its totient is φ = 2660112.

The previous prime is 3509951. The next prime is 3509981. The reversal of 3509965 is 5699053.

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

It is a cyclic number.

It is not a de Polignac number, because 3509965 - 2⁹ = 3509453 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18379 + ... + 18568.

It is an arithmetic number, because the mean of its divisors is an integer number (554220).

Almost surely, 2^3509965 is an apocalyptic number.

It is an amenable number.

3509965 is a deficient number, since it is larger than the sum of its proper divisors (923795).

3509965 is a wasteful number, since it uses less digits than its factorization.

3509965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36971.

The product of its (nonzero) digits is 36450, while the sum is 37.

The square root of 3509965 is about 1873.4900586873. The cubic root of 3509965 is about 151.9734054349.

The spelling of 3509965 in words is "three million, five hundred nine thousand, nine hundred sixty-five".