3222745 has 4 divisors (see below), whose sum is σ = 3867300. Its totient is φ = 2578192.

The previous prime is 3222727. The next prime is 3222763. The reversal of 3222745 is 5472223.

3222745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5472223 = 43 ⋅127261.

It is an interprime number because it is at equal distance from previous prime (3222727) and next prime (3222763).

It can be written as a sum of positive squares in 2 ways, for example, as 2064969 + 1157776 = 1437^2 + 1076^2 .

It is a cyclic number.

It is not a de Polignac number, because 3222745 - 2⁷ = 3222617 is a prime.

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, 322270 + ... + 322279.

It is an arithmetic number, because the mean of its divisors is an integer number (966825).

Almost surely, 2^3222745 is an apocalyptic number.

It is an amenable number.

3222745 is a deficient number, since it is larger than the sum of its proper divisors (644555).

3222745 is an equidigital number, since it uses as much as digits as its factorization.

3222745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644554.

The product of its digits is 3360, while the sum is 25.

The square root of 3222745 is about 1795.2005459001. The cubic root of 3222745 is about 147.7095747276.

Adding to 3222745 its reverse (5472223), we get a palindrome (8694968).

The spelling of 3222745 in words is "three million, two hundred twenty-two thousand, seven hundred forty-five".