7219890229 has 2 divisors, whose sum is σ = 7219890230. Its totient is φ = 7219890228.

The previous prime is 7219890221. The next prime is 7219890287. The reversal of 7219890229 is 9220989127.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4778542129 + 2441348100 = 69127^2 + 49410^2 .

It is a cyclic number.

It is not a de Polignac number, because 7219890229 - 2³ = 7219890221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7219890221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3609945114 + 3609945115.

It is an arithmetic number, because the mean of its divisors is an integer number (3609945115).

Almost surely, 2^7219890229 is an apocalyptic number.

It is an amenable number.

7219890229 is a deficient number, since it is larger than the sum of its proper divisors (1).

7219890229 is an equidigital number, since it uses as much as digits as its factorization.

7219890229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 7219890229 is about 84969.9372072264. The cubic root of 7219890229 is about 1932.7552644279.

The spelling of 7219890229 in words is "seven billion, two hundred nineteen million, eight hundred ninety thousand, two hundred twenty-nine".