3994618 has 8 divisors (see below), whose sum is σ = 6000660. Its totient is φ = 1994400.

The previous prime is 3994597. The next prime is 3994619. The reversal of 3994618 is 8164993.

It can be written as a sum of positive squares in 2 ways, for example, as 2948089 + 1046529 = 1717^2 + 1023^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3994619) 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, 1318 + ... + 3118.

Almost surely, 2^3994618 is an apocalyptic number.

3994618 is a deficient number, since it is larger than the sum of its proper divisors (2006042).

3994618 is a wasteful number, since it uses less digits than its factorization.

3994618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912.

The product of its digits is 46656, while the sum is 40.

The square root of 3994618 is about 1998.6540471027. The cubic root of 3994618 is about 158.6688783048.

The spelling of 3994618 in words is "three million, nine hundred ninety-four thousand, six hundred eighteen".