20693273 has 2 divisors, whose sum is σ = 20693274. Its totient is φ = 20693272.

The previous prime is 20693263. The next prime is 20693287. The reversal of 20693273 is 37239602.

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 + 595984 = 4483^2 + 772^2 .

It is a cyclic number.

It is not a de Polignac number, because 20693273 - 2⁶ = 20693209 is a prime.

It is not a weakly prime, because it can be changed into another prime (20693203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10346636 + 10346637.

It is an arithmetic number, because the mean of its divisors is an integer number (10346637).

Almost surely, 2^20693273 is an apocalyptic number.

It is an amenable number.

20693273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20693273 is an equidigital number, since it uses as much as digits as its factorization.

20693273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 32.

The square root of 20693273 is about 4548.9859309521. The cubic root of 20693273 is about 274.5425916793.

The spelling of 20693273 in words is "twenty million, six hundred ninety-three thousand, two hundred seventy-three".