3626221 has 2 divisors, whose sum is σ = 3626222. Its totient is φ = 3626220.

The previous prime is 3626201. The next prime is 3626239. The reversal of 3626221 is 1226263.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2292196 + 1334025 = 1514^2 + 1155^2 .

It is an emirp because it is prime and its reverse (1226263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3626221 - 2¹³ = 3618029 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3626192 and 3626201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3626201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1813110 + 1813111.

It is an arithmetic number, because the mean of its divisors is an integer number (1813111).

Almost surely, 2^3626221 is an apocalyptic number.

It is an amenable number.

3626221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3626221 is an equidigital number, since it uses as much as digits as its factorization.

3626221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 3626221 is about 1904.2638997786. The cubic root of 3626221 is about 153.6330866992.

The spelling of 3626221 in words is "three million, six hundred twenty-six thousand, two hundred twenty-one".