20100673 has 2 divisors, whose sum is σ = 20100674. Its totient is φ = 20100672.

The previous prime is 20100629. The next prime is 20100709. The reversal of 20100673 is 37600102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14493249 + 5607424 = 3807^2 + 2368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20100673.

It is not a weakly prime, because it can be changed into another prime (20100473) 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, 10050336 + 10050337.

It is an arithmetic number, because the mean of its divisors is an integer number (10050337).

Almost surely, 2^20100673 is an apocalyptic number.

It is an amenable number.

20100673 is a deficient number, since it is larger than the sum of its proper divisors (1).

20100673 is an equidigital number, since it uses as much as digits as its factorization.

20100673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20100673 is about 4483.3774099444. The cubic root of 20100673 is about 271.8964472093.

Adding to 20100673 its reverse (37600102), we get a palindrome (57700775).

The spelling of 20100673 in words is "twenty million, one hundred thousand, six hundred seventy-three".