19672013 has 2 divisors, whose sum is σ = 19672014. Its totient is φ = 19672012.

The previous prime is 19672007. The next prime is 19672039. The reversal of 19672013 is 31027691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 5368489 = 3782^2 + 2317^2 .

It is an emirp because it is prime and its reverse (31027691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19672013 - 2⁴ = 19671997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19672813) 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, 9836006 + 9836007.

It is an arithmetic number, because the mean of its divisors is an integer number (9836007).

Almost surely, 2^19672013 is an apocalyptic number.

It is an amenable number.

19672013 is a deficient number, since it is larger than the sum of its proper divisors (1).

19672013 is an equidigital number, since it uses as much as digits as its factorization.

19672013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 19672013 is about 4435.3143067882. The cubic root of 19672013 is about 269.9497528809.

The spelling of 19672013 in words is "nineteen million, six hundred seventy-two thousand, thirteen".