2985221 has 2 divisors, whose sum is σ = 2985222. Its totient is φ = 2985220.

The previous prime is 2985211. The next prime is 2985247. The reversal of 2985221 is 1225892.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 376996 = 1615^2 + 614^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2985221 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2985211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1492610 + 1492611.

It is an arithmetic number, because the mean of its divisors is an integer number (1492611).

2^2985221 is an apocalyptic number.

It is an amenable number.

2985221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2985221 is an equidigital number, since it uses as much as digits as its factorization.

2985221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 29.

The square root of 2985221 is about 1727.7792104317. The cubic root of 2985221 is about 143.9877336516.

The spelling of 2985221 in words is "two million, nine hundred eighty-five thousand, two hundred twenty-one".