7613324221 has 2 divisors, whose sum is σ = 7613324222. Its totient is φ = 7613324220.

The previous prime is 7613324197. The next prime is 7613324239. The reversal of 7613324221 is 1224233167.

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., 5510092900 + 2103231321 = 74230^2 + 45861^2 .

It is a cyclic number.

It is not a de Polignac number, because 7613324221 - 2⁵ = 7613324189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7613328221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3806662110 + 3806662111.

It is an arithmetic number, because the mean of its divisors is an integer number (3806662111).

Almost surely, 2^7613324221 is an apocalyptic number.

It is an amenable number.

7613324221 is a deficient number, since it is larger than the sum of its proper divisors (1).

7613324221 is an equidigital number, since it uses as much as digits as its factorization.

7613324221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 31.

The square root of 7613324221 is about 87254.3650541335. The cubic root of 7613324221 is about 1967.2434516446.

Adding to 7613324221 its reverse (1224233167), we get a palindrome (8837557388).

The spelling of 7613324221 in words is "seven billion, six hundred thirteen million, three hundred twenty-four thousand, two hundred twenty-one".