207123893 has 2 divisors, whose sum is σ = 207123894. Its totient is φ = 207123892.

The previous prime is 207123863. The next prime is 207123899. The reversal of 207123893 is 398321702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165431044 + 41692849 = 12862^2 + 6457^2 .

It is a cyclic number.

It is not a de Polignac number, because 207123893 - 2¹⁸ = 206861749 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 (207123899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103561946 + 103561947.

It is an arithmetic number, because the mean of its divisors is an integer number (103561947).

Almost surely, 2^207123893 is an apocalyptic number.

It is an amenable number.

207123893 is a deficient number, since it is larger than the sum of its proper divisors (1).

207123893 is an equidigital number, since it uses as much as digits as its factorization.

207123893 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 207123893 is about 14391.7995052738. The cubic root of 207123893 is about 591.6661636267. Note that the first 3 decimals are identical.

The spelling of 207123893 in words is "two hundred seven million, one hundred twenty-three thousand, eight hundred ninety-three".