19228673 has 2 divisors, whose sum is σ = 19228674. Its totient is φ = 19228672.

The previous prime is 19228669. The next prime is 19228721. The reversal of 19228673 is 37682291.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12837889 + 6390784 = 3583^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 19228673 - 2² = 19228669 is a prime.

It is not a weakly prime, because it can be changed into another prime (19228613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9614336 + 9614337.

It is an arithmetic number, because the mean of its divisors is an integer number (9614337).

Almost surely, 2^19228673 is an apocalyptic number.

It is an amenable number.

19228673 is a deficient number, since it is larger than the sum of its proper divisors (1).

19228673 is an equidigital number, since it uses as much as digits as its factorization.

19228673 is an evil number, because the sum of its binary digits is even.

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

The square root of 19228673 is about 4385.0510829408. The cubic root of 19228673 is about 267.9064099210.

The spelling of 19228673 in words is "nineteen million, two hundred twenty-eight thousand, six hundred seventy-three".