3218612 has 6 divisors (see below), whose sum is σ = 5632578. Its totient is φ = 1609304.

The previous prime is 3218609. The next prime is 3218629. The reversal of 3218612 is 2168123.

It can be written as a sum of positive squares in only one way, i.e., 3118756 + 99856 = 1766^2 + 316^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402323 + ... + 402330.

It is an arithmetic number, because the mean of its divisors is an integer number (938763).

Almost surely, 2^3218612 is an apocalyptic number.

It is an amenable number.

3218612 is a deficient number, since it is larger than the sum of its proper divisors (2413966).

3218612 is a wasteful number, since it uses less digits than its factorization.

3218612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804657 (or 804655 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 3218612 is about 1794.0490517263. The cubic root of 3218612 is about 147.6464044768.

The spelling of 3218612 in words is "three million, two hundred eighteen thousand, six hundred twelve".