3959505 has 48 divisors (see below), whose sum is σ = 7899840. Its totient is φ = 1814400.

The previous prime is 3959491. The next prime is 3959507. The reversal of 3959505 is 5059593.

It is not a de Polignac number, because 3959505 - 2⁶ = 3959441 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3959505.

It is not an unprimeable number, because it can be changed into a prime (3959507) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9195 + ... + 9615.

It is an arithmetic number, because the mean of its divisors is an integer number (164580).

Almost surely, 2^3959505 is an apocalyptic number.

It is an amenable number.

3959505 is a deficient number, since it is larger than the sum of its proper divisors (3940335).

3959505 is a wasteful number, since it uses less digits than its factorization.

3959505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 30375, while the sum is 36.

The square root of 3959505 is about 1989.8504968967. The cubic root of 3959505 is about 158.2026055447.

The spelling of 3959505 in words is "three million, nine hundred fifty-nine thousand, five hundred five".