3918849 has 16 divisors (see below), whose sum is σ = 5745600. Its totient is φ = 2356160.

The previous prime is 3918829. The next prime is 3918851. The reversal of 3918849 is 9488193.

It is a cyclic number.

It is not a de Polignac number, because 3918849 - 2¹⁶ = 3853313 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3918849.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4519 + ... + 5315.

It is an arithmetic number, because the mean of its divisors is an integer number (359100).

Almost surely, 2^3918849 is an apocalyptic number.

It is an amenable number.

3918849 is a deficient number, since it is larger than the sum of its proper divisors (1826751).

3918849 is a wasteful number, since it uses less digits than its factorization.

3918849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 960.

The product of its digits is 62208, while the sum is 42.

The square root of 3918849 is about 1979.6082945876. The cubic root of 3918849 is about 157.6592694739.

The spelling of 3918849 in words is "three million, nine hundred eighteen thousand, eight hundred forty-nine".