20935373 has 2 divisors, whose sum is σ = 20935374. Its totient is φ = 20935372.

The previous prime is 20935357. The next prime is 20935399. The reversal of 20935373 is 37353902.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16104169 + 4831204 = 4013^2 + 2198^2 .

It is a cyclic number.

It is not a de Polignac number, because 20935373 - 2⁴ = 20935357 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20935333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10467686 + 10467687.

It is an arithmetic number, because the mean of its divisors is an integer number (10467687).

Almost surely, 2^20935373 is an apocalyptic number.

It is an amenable number.

20935373 is a deficient number, since it is larger than the sum of its proper divisors (1).

20935373 is an equidigital number, since it uses as much as digits as its factorization.

20935373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17010, while the sum is 32.

The square root of 20935373 is about 4575.5188776793. The cubic root of 20935373 is about 275.6091093654.

The spelling of 20935373 in words is "twenty million, nine hundred thirty-five thousand, three hundred seventy-three".