19962073 has 2 divisors, whose sum is σ = 19962074. Its totient is φ = 19962072.

The previous prime is 19962071. The next prime is 19962113. The reversal of 19962073 is 37026991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18344089 + 1617984 = 4283^2 + 1272^2 .

It is a cyclic number.

It is not a de Polignac number, because 19962073 - 2¹ = 19962071 is a prime.

Together with 19962071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (19962071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9981036 + 9981037.

It is an arithmetic number, because the mean of its divisors is an integer number (9981037).

Almost surely, 2^19962073 is an apocalyptic number.

It is an amenable number.

19962073 is a deficient number, since it is larger than the sum of its proper divisors (1).

19962073 is an equidigital number, since it uses as much as digits as its factorization.

19962073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 19962073 is about 4467.8935752768. The cubic root of 19962073 is about 271.2700702231.

The spelling of 19962073 in words is "nineteen million, nine hundred sixty-two thousand, seventy-three".