3945995 has 8 divisors (see below), whose sum is σ = 4941216. Its totient is φ = 3019456.

The previous prime is 3945983. The next prime is 3946027. The reversal of 3945995 is 5995493.

3945995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3945995 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17042 + ... + 17271.

It is an arithmetic number, because the mean of its divisors is an integer number (617652).

Almost surely, 2^3945995 is an apocalyptic number.

3945995 is a deficient number, since it is larger than the sum of its proper divisors (995221).

3945995 is a wasteful number, since it uses less digits than its factorization.

3945995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34341.

The product of its digits is 218700, while the sum is 44.

The square root of 3945995 is about 1986.4528688091. The cubic root of 3945995 is about 158.0224691647.

The spelling of 3945995 in words is "three million, nine hundred forty-five thousand, nine hundred ninety-five".