19706941 has 2 divisors, whose sum is σ = 19706942. Its totient is φ = 19706940.

The previous prime is 19706909. The next prime is 19706963. The reversal of 19706941 is 14960791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17884441 + 1822500 = 4229^2 + 1350^2 .

It is a cyclic number.

It is not a de Polignac number, because 19706941 - 2⁵ = 19706909 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19706941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19706741) 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, 9853470 + 9853471.

It is an arithmetic number, because the mean of its divisors is an integer number (9853471).

Almost surely, 2^19706941 is an apocalyptic number.

It is an amenable number.

19706941 is a deficient number, since it is larger than the sum of its proper divisors (1).

19706941 is an equidigital number, since it uses as much as digits as its factorization.

19706941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 19706941 is about 4439.2500492763. The cubic root of 19706941 is about 270.1094252393.

It can be divided in two parts, 1970 and 6941, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 19706941 in words is "nineteen million, seven hundred six thousand, nine hundred forty-one".