3995943 has 8 divisors (see below), whose sum is σ = 6089088. Its totient is φ = 2283384.

The previous prime is 3995941. The next prime is 3995977. The reversal of 3995943 is 3495993.

It is a happy number.

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

It is not a de Polignac number, because 3995943 - 2¹ = 3995941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3995895 and 3995904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95121 + ... + 95162.

It is an arithmetic number, because the mean of its divisors is an integer number (761136).

Almost surely, 2^3995943 is an apocalyptic number.

3995943 is a deficient number, since it is larger than the sum of its proper divisors (2093145).

3995943 is a wasteful number, since it uses less digits than its factorization.

3995943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190293.

The product of its digits is 131220, while the sum is 42.

The square root of 3995943 is about 1998.9854926937. The cubic root of 3995943 is about 158.6864196586.

The spelling of 3995943 in words is "three million, nine hundred ninety-five thousand, nine hundred forty-three".