3995249 has 4 divisors (see below), whose sum is σ = 4124160. Its totient is φ = 3866340.

The previous prime is 3995231. The next prime is 3995269. The reversal of 3995249 is 9425993.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9425993 = 109 ⋅86477.

It is a cyclic number.

It is not a de Polignac number, because 3995249 - 2⁸ = 3994993 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 64409 + ... + 64470.

It is an arithmetic number, because the mean of its divisors is an integer number (1031040).

Almost surely, 2^3995249 is an apocalyptic number.

It is an amenable number.

3995249 is a deficient number, since it is larger than the sum of its proper divisors (128911).

3995249 is a wasteful number, since it uses less digits than its factorization.

3995249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128910.

The product of its digits is 87480, while the sum is 41.

The square root of 3995249 is about 1998.8118971029. The cubic root of 3995249 is about 158.6772324446.

It can be divided in two parts, 3995 and 249, that multiplied together give a triangular number (994755 = T₁₄₁₀).

The spelling of 3995249 in words is "three million, nine hundred ninety-five thousand, two hundred forty-nine".