309996007 has 2 divisors, whose sum is σ = 309996008. Its totient is φ = 309996006.

The previous prime is 309995977. The next prime is 309996041. The reversal of 309996007 is 700699903.

It is a weak prime.

It is an emirp because it is prime and its reverse (700699903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 309996007 - 2²³ = 301607399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (309993007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154998003 + 154998004.

It is an arithmetic number, because the mean of its divisors is an integer number (154998004).

Almost surely, 2^309996007 is an apocalyptic number.

309996007 is a deficient number, since it is larger than the sum of its proper divisors (1).

309996007 is an equidigital number, since it uses as much as digits as its factorization.

309996007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 309996007 is about 17606.7034677137. The cubic root of 309996007 is about 676.7870393678.

The spelling of 309996007 in words is "three hundred nine million, nine hundred ninety-six thousand, seven".