3227561 has 4 divisors (see below), whose sum is σ = 3306324. Its totient is φ = 3148800.

The previous prime is 3227551. The next prime is 3227579. The reversal of 3227561 is 1657223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1657223 = 127 ⋅13049.

It can be written as a sum of positive squares in 2 ways, for example, as 883600 + 2343961 = 940^2 + 1531^2 .

It is not a de Polignac number, because 3227561 - 2¹⁰ = 3226537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3227561.

It is not an unprimeable number, because it can be changed into a prime (3227551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39320 + ... + 39401.

It is an arithmetic number, because the mean of its divisors is an integer number (826581).

Almost surely, 2^3227561 is an apocalyptic number.

It is an amenable number.

3227561 is a deficient number, since it is larger than the sum of its proper divisors (78763).

3227561 is an equidigital number, since it uses as much as digits as its factorization.

3227561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78762.

The product of its digits is 2520, while the sum is 26.

The square root of 3227561 is about 1796.5413994673. The cubic root of 3227561 is about 147.7831160983.

The spelling of 3227561 in words is "three million, two hundred twenty-seven thousand, five hundred sixty-one".