3220061 has 4 divisors (see below), whose sum is σ = 3467772. Its totient is φ = 2972352.

The previous prime is 3220051. The next prime is 3220081. The reversal of 3220061 is 1600223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1976836 + 1243225 = 1406^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220061 - 2¹⁴ = 3203677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123836 + ... + 123861.

It is an arithmetic number, because the mean of its divisors is an integer number (866943).

Almost surely, 2^3220061 is an apocalyptic number.

It is an amenable number.

3220061 is a deficient number, since it is larger than the sum of its proper divisors (247711).

3220061 is a wasteful number, since it uses less digits than its factorization.

3220061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247710.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 3220061 is about 1794.4528413976. The cubic root of 3220061 is about 147.6685576641.

Adding to 3220061 its reverse (1600223), we get a palindrome (4820284).

The spelling of 3220061 in words is "three million, two hundred twenty thousand, sixty-one".