63220819 has 2 divisors, whose sum is σ = 63220820. Its totient is φ = 63220818.

The previous prime is 63220789. The next prime is 63220823. The reversal of 63220819 is 91802236.

63220819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63220819 - 2¹⁵ = 63188051 is a prime.

It is a super-2 number, since 2×63220819² = 7993743910061522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63221819) 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, 31610409 + 31610410.

It is an arithmetic number, because the mean of its divisors is an integer number (31610410).

Almost surely, 2^63220819 is an apocalyptic number.

63220819 is a deficient number, since it is larger than the sum of its proper divisors (1).

63220819 is an equidigital number, since it uses as much as digits as its factorization.

63220819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 63220819 is about 7951.1520548912. The cubic root of 63220819 is about 398.3700736212.

The spelling of 63220819 in words is "sixty-three million, two hundred twenty thousand, eight hundred nineteen".