207970001 has 2 divisors, whose sum is σ = 207970002. Its totient is φ = 207970000.

The previous prime is 207969997. The next prime is 207970003. The reversal of 207970001 is 100079702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113976976 + 93993025 = 10676^2 + 9695^2 .

It is a cyclic number.

It is not a de Polignac number, because 207970001 - 2² = 207969997 is a prime.

Together with 207970003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (207970003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103985000 + 103985001.

It is an arithmetic number, because the mean of its divisors is an integer number (103985001).

Almost surely, 2^207970001 is an apocalyptic number.

It is an amenable number.

207970001 is a deficient number, since it is larger than the sum of its proper divisors (1).

207970001 is an equidigital number, since it uses as much as digits as its factorization.

207970001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 26.

The square root of 207970001 is about 14421.1650361543. The cubic root of 207970001 is about 592.4707277224.

The spelling of 207970001 in words is "two hundred seven million, nine hundred seventy thousand, one".