3995517 has 16 divisors (see below), whose sum is σ = 5575680. Its totient is φ = 2542512.

The previous prime is 3995513. The next prime is 3995543. The reversal of 3995517 is 7155993.

It is not a de Polignac number, because 3995517 - 2² = 3995513 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5734 + ... + 6392.

It is an arithmetic number, because the mean of its divisors is an integer number (348480).

Almost surely, 2^3995517 is an apocalyptic number.

It is an amenable number.

3995517 is a deficient number, since it is larger than the sum of its proper divisors (1580163).

3995517 is a wasteful number, since it uses less digits than its factorization.

3995517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752.

The product of its digits is 42525, while the sum is 39.

The square root of 3995517 is about 1998.8789358038. The cubic root of 3995517 is about 158.6807803709.

The spelling of 3995517 in words is "three million, nine hundred ninety-five thousand, five hundred seventeen".