3995117 has 6 divisors (see below), whose sum is σ = 4647438. Its totient is φ = 3424344.

The previous prime is 3995113. The next prime is 3995129. The reversal of 3995117 is 7115993.

It can be written as a sum of positive squares in only one way, i.e., 3924361 + 70756 = 1981^2 + 266^2 .

It is not a de Polignac number, because 3995117 - 2² = 3995113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995113) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40718 + ... + 40815.

It is an arithmetic number, because the mean of its divisors is an integer number (774573).

Almost surely, 2^3995117 is an apocalyptic number.

It is an amenable number.

3995117 is a deficient number, since it is larger than the sum of its proper divisors (652321).

3995117 is an equidigital number, since it uses as much as digits as its factorization.

3995117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81547 (or 81540 counting only the distinct ones).

The product of its digits is 8505, while the sum is 35.

The square root of 3995117 is about 1998.7788772148. The cubic root of 3995117 is about 158.6754849001.

The spelling of 3995117 in words is "three million, nine hundred ninety-five thousand, one hundred seventeen".