20113673 has 2 divisors, whose sum is σ = 20113674. Its totient is φ = 20113672.

The previous prime is 20113651. The next prime is 20113721. The reversal of 20113673 is 37631102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20097289 + 16384 = 4483^2 + 128^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113673 - 2⁸ = 20113417 is a prime.

It is not a weakly prime, because it can be changed into another prime (20113633) 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, 10056836 + 10056837.

It is an arithmetic number, because the mean of its divisors is an integer number (10056837).

Almost surely, 2^20113673 is an apocalyptic number.

It is an amenable number.

20113673 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113673 is an equidigital number, since it uses as much as digits as its factorization.

20113673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 20113673 is about 4484.8269754808. The cubic root of 20113673 is about 271.9550504226.

Adding to 20113673 its reverse (37631102), we get a palindrome (57744775).

The spelling of 20113673 in words is "twenty million, one hundred thirteen thousand, six hundred seventy-three".