3936818 has 18 divisors (see below), whose sum is σ = 6275997. Its totient is φ = 1851960.

The previous prime is 3936811. The next prime is 3936827. The reversal of 3936818 is 8186393.

It can be written as a sum of positive squares in 2 ways, for example, as 2666689 + 1270129 = 1633^2 + 1127^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1403.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3936811) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 64508 + ... + 64568.

Almost surely, 2^3936818 is an apocalyptic number.

3936818 is a deficient number, since it is larger than the sum of its proper divisors (2339179).

3936818 is an equidigital number, since it uses as much as digits as its factorization.

3936818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170 (or 86 counting only the distinct ones).

The product of its digits is 31104, while the sum is 38.

The square root of 3936818 is about 1984.1416280095. The cubic root of 3936818 is about 157.8998724684.

The spelling of 3936818 in words is "three million, nine hundred thirty-six thousand, eight hundred eighteen".