3913505 has 8 divisors (see below), whose sum is σ = 4733952. Its totient is φ = 3105648.

The previous prime is 3913501. The next prime is 3913513. The reversal of 3913505 is 5053193.

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 3913505 - 2² = 3913501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3913501) by changing a digit.

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, 2447 + ... + 3716.

It is an arithmetic number, because the mean of its divisors is an integer number (591744).

Almost surely, 2^3913505 is an apocalyptic number.

It is an amenable number.

3913505 is a deficient number, since it is larger than the sum of its proper divisors (820447).

3913505 is a wasteful number, since it uses less digits than its factorization.

3913505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6295.

The product of its (nonzero) digits is 2025, while the sum is 26.

The square root of 3913505 is about 1978.2580721433. The cubic root of 3913505 is about 157.5875720271.

Adding to 3913505 its reverse (5053193), we get a palindrome (8966698).

The spelling of 3913505 in words is "three million, nine hundred thirteen thousand, five hundred five".