19950713 has 2 divisors, whose sum is σ = 19950714. Its totient is φ = 19950712.

The previous prime is 19950691. The next prime is 19950727. The reversal of 19950713 is 31705991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10445824 + 9504889 = 3232^2 + 3083^2 .

It is an emirp because it is prime and its reverse (31705991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19950713 - 2¹⁰ = 19949689 is a prime.

It is equal to p_1267667 and since 19950713 and 1267667 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (19950743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9975356 + 9975357.

It is an arithmetic number, because the mean of its divisors is an integer number (9975357).

Almost surely, 2^19950713 is an apocalyptic number.

It is an amenable number.

19950713 is a deficient number, since it is larger than the sum of its proper divisors (1).

19950713 is an equidigital number, since it uses as much as digits as its factorization.

19950713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 19950713 is about 4466.6221017677. The cubic root of 19950713 is about 271.2186024097.

The spelling of 19950713 in words is "nineteen million, nine hundred fifty thousand, seven hundred thirteen".