20073577 has 2 divisors, whose sum is σ = 20073578. Its totient is φ = 20073576.

The previous prime is 20073563. The next prime is 20073589. The reversal of 20073577 is 77537002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19900521 + 173056 = 4461^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 20073577 - 2¹¹ = 20071529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20073517) 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, 10036788 + 10036789.

It is an arithmetic number, because the mean of its divisors is an integer number (10036789).

Almost surely, 2^20073577 is an apocalyptic number.

It is an amenable number.

20073577 is a deficient number, since it is larger than the sum of its proper divisors (1).

20073577 is an equidigital number, since it uses as much as digits as its factorization.

20073577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10290, while the sum is 31.

The square root of 20073577 is about 4480.3545618623. The cubic root of 20073577 is about 271.7742188138.

The spelling of 20073577 in words is "twenty million, seventy-three thousand, five hundred seventy-seven".