20097733 has 2 divisors, whose sum is σ = 20097734. Its totient is φ = 20097732.

The previous prime is 20097709. The next prime is 20097751. The reversal of 20097733 is 33779002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20088324 + 9409 = 4482^2 + 97^2 .

It is a cyclic number.

It is not a de Polignac number, because 20097733 - 2⁹ = 20097221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20097695 and 20097704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20097773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10048866 + 10048867.

It is an arithmetic number, because the mean of its divisors is an integer number (10048867).

Almost surely, 2^20097733 is an apocalyptic number.

It is an amenable number.

20097733 is a deficient number, since it is larger than the sum of its proper divisors (1).

20097733 is an equidigital number, since it uses as much as digits as its factorization.

20097733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 31.

The square root of 20097733 is about 4483.0495201369. The cubic root of 20097733 is about 271.8831903641.

The spelling of 20097733 in words is "twenty million, ninety-seven thousand, seven hundred thirty-three".