3999241 has 4 divisors (see below), whose sum is σ = 4022532. Its totient is φ = 3975952.

The previous prime is 3999239. The next prime is 3999251. The reversal of 3999241 is 1429993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1429993 = 53 ⋅26981.

It can be written as a sum of positive squares in 2 ways, for example, as 1452025 + 2547216 = 1205^2 + 1596^2 .

It is a cyclic number.

It is not a de Polignac number, because 3999241 - 2¹ = 3999239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3999241.

It is not an unprimeable number, because it can be changed into a prime (3999211) 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, 11386 + ... + 11731.

It is an arithmetic number, because the mean of its divisors is an integer number (1005633).

Almost surely, 2^3999241 is an apocalyptic number.

It is an amenable number.

3999241 is a deficient number, since it is larger than the sum of its proper divisors (23291).

3999241 is a wasteful number, since it uses less digits than its factorization.

3999241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23290.

The product of its digits is 17496, while the sum is 37.

The square root of 3999241 is about 1999.8102409979. The cubic root of 3999241 is about 158.7300642500.

The spelling of 3999241 in words is "three million, nine hundred ninety-nine thousand, two hundred forty-one".