3995215 has 24 divisors (see below), whose sum is σ = 5827680. Its totient is φ = 2616768.

The previous prime is 3995207. The next prime is 3995219. The reversal of 3995215 is 5125993.

It is a happy number.

It is not a de Polignac number, because 3995215 - 2³ = 3995207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5281 + ... + 5989.

It is an arithmetic number, because the mean of its divisors is an integer number (242820).

Almost surely, 2^3995215 is an apocalyptic number.

3995215 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

3995215 is a deficient number, since it is larger than the sum of its proper divisors (1832465).

3995215 is a wasteful number, since it uses less digits than its factorization.

3995215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751 (or 744 counting only the distinct ones).

The product of its digits is 12150, while the sum is 34.

The square root of 3995215 is about 1998.8033920323. The cubic root of 3995215 is about 158.6767823232.

The spelling of 3995215 in words is "three million, nine hundred ninety-five thousand, two hundred fifteen".