207912973 has 2 divisors, whose sum is σ = 207912974. Its totient is φ = 207912972.

The previous prime is 207912967. The next prime is 207912983. The reversal of 207912973 is 379219702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177475684 + 30437289 = 13322^2 + 5517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207912973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (207912983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103956486 + 103956487.

It is an arithmetic number, because the mean of its divisors is an integer number (103956487).

Almost surely, 2^207912973 is an apocalyptic number.

It is an amenable number.

207912973 is a deficient number, since it is larger than the sum of its proper divisors (1).

207912973 is an equidigital number, since it uses as much as digits as its factorization.

207912973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 207912973 is about 14419.1876678265. The cubic root of 207912973 is about 592.4165684537.

The spelling of 207912973 in words is "two hundred seven million, nine hundred twelve thousand, nine hundred seventy-three".