1220884579 has 2 divisors, whose sum is σ = 1220884580. Its totient is φ = 1220884578.

The previous prime is 1220884531. The next prime is 1220884603. The reversal of 1220884579 is 9754880221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220884579 - 2¹⁵ = 1220851811 is a prime.

It is not a weakly prime, because it can be changed into another prime (1220881579) 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, 610442289 + 610442290.

It is an arithmetic number, because the mean of its divisors is an integer number (610442290).

Almost surely, 2^1220884579 is an apocalyptic number.

1220884579 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220884579 is an equidigital number, since it uses as much as digits as its factorization.

1220884579 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 1220884579 is about 34941.1588102055. The cubic root of 1220884579 is about 1068.7879188398.

The spelling of 1220884579 in words is "one billion, two hundred twenty million, eight hundred eighty-four thousand, five hundred seventy-nine".