1622730089 has 2 divisors, whose sum is σ = 1622730090. Its totient is φ = 1622730088.

The previous prime is 1622730077. The next prime is 1622730163. The reversal of 1622730089 is 9800372261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1622720089 + 10000 = 40283^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1622730089 - 2²⁰ = 1621681513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1622730029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 811365044 + 811365045.

It is an arithmetic number, because the mean of its divisors is an integer number (811365045).

Almost surely, 2^1622730089 is an apocalyptic number.

It is an amenable number.

1622730089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1622730089 is an equidigital number, since it uses as much as digits as its factorization.

1622730089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1622730089 is about 40283.1241216468. The cubic root of 1622730089 is about 1175.1196712880.

The spelling of 1622730089 in words is "one billion, six hundred twenty-two million, seven hundred thirty thousand, eighty-nine".