3220718 has 8 divisors (see below), whose sum is σ = 5115312. Its totient is φ = 1515616.

The previous prime is 3220703. The next prime is 3220727. The reversal of 3220718 is 8170223.

3220718 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 3220693 and 3220702.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 47330 + ... + 47397.

It is an arithmetic number, because the mean of its divisors is an integer number (639414).

Almost surely, 2^3220718 is an apocalyptic number.

3220718 is a deficient number, since it is larger than the sum of its proper divisors (1894594).

3220718 is a wasteful number, since it uses less digits than its factorization.

3220718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94746.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3220718 is about 1794.6358962196. The cubic root of 3220718 is about 147.6786000872.

It can be divided in two parts, 32 and 20718, that multiplied together give a triangular number (662976 = T₁₁₅₁).

The spelling of 3220718 in words is "three million, two hundred twenty thousand, seven hundred eighteen".