3918212 has 6 divisors (see below), whose sum is σ = 6856878. Its totient is φ = 1959104.

The previous prime is 3918209. The next prime is 3918251. The reversal of 3918212 is 2128193.

3918212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2869636 + 1048576 = 1694^2 + 1024^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489773 + ... + 489780.

It is an arithmetic number, because the mean of its divisors is an integer number (1142813).

Almost surely, 2^3918212 is an apocalyptic number.

It is an amenable number.

3918212 is a deficient number, since it is larger than the sum of its proper divisors (2938666).

3918212 is a wasteful number, since it uses less digits than its factorization.

3918212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979557 (or 979555 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

The square root of 3918212 is about 1979.4473976340. The cubic root of 3918212 is about 157.6507266257.

The spelling of 3918212 in words is "three million, nine hundred eighteen thousand, two hundred twelve".