7590221 has 2 divisors, whose sum is σ = 7590222. Its totient is φ = 7590220.

The previous prime is 7590197. The next prime is 7590223. The reversal of 7590221 is 1220957.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7590025 + 196 = 2755^2 + 14^2 .

It is a cyclic number.

It is not a de Polignac number, because 7590221 - 2⁶ = 7590157 is a prime.

It is a super-2 number, since 2×7590221² = 115222909657682, which contains 22 as substring.

Together with 7590223, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₅₁₃₉₃₅ and since 7590221 and 513935 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7590223) 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 as a sum of consecutive naturals, namely, 3795110 + 3795111.

It is an arithmetic number, because the mean of its divisors is an integer number (3795111).

Almost surely, 2^7590221 is an apocalyptic number.

It is an amenable number.

7590221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7590221 is an equidigital number, since it uses as much as digits as its factorization.

7590221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 7590221 is about 2755.0355714582. The cubic root of 7590221 is about 196.5251517939.

The spelling of 7590221 in words is "seven million, five hundred ninety thousand, two hundred twenty-one".