19328669 has 2 divisors, whose sum is σ = 19328670. Its totient is φ = 19328668.

The previous prime is 19328651. The next prime is 19328707. The reversal of 19328669 is 96682391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13227769 + 6100900 = 3637^2 + 2470^2 .

It is a cyclic number.

It is not a de Polignac number, because 19328669 - 2¹² = 19324573 is a prime.

It is a super-2 number, since 2×19328669² = 747194890623122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19328069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9664334 + 9664335.

It is an arithmetic number, because the mean of its divisors is an integer number (9664335).

Almost surely, 2^19328669 is an apocalyptic number.

It is an amenable number.

19328669 is a deficient number, since it is larger than the sum of its proper divisors (1).

19328669 is an equidigital number, since it uses as much as digits as its factorization.

19328669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 44.

The square root of 19328669 is about 4396.4382174665. The cubic root of 19328669 is about 268.3700103752.

It can be divided in two parts, 1932 and 8669, that added together give a palindrome (10601).

The spelling of 19328669 in words is "nineteen million, three hundred twenty-eight thousand, six hundred sixty-nine".