398038650007 has 2 divisors, whose sum is σ = 398038650008. Its totient is φ = 398038650006.

The previous prime is 398038649881. The next prime is 398038650017. The reversal of 398038650007 is 700056830893.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-398038650007 is a prime.

It is a super-3 number, since 3×398038650007³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (398038650017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199019325003 + 199019325004.

It is an arithmetic number, because the mean of its divisors is an integer number (199019325004).

Almost surely, 2^398038650007 is an apocalyptic number.

398038650007 is a deficient number, since it is larger than the sum of its proper divisors (1).

398038650007 is an equidigital number, since it uses as much as digits as its factorization.

398038650007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 398038650007 in words is "three hundred ninety-eight billion, thirty-eight million, six hundred fifty thousand, seven".