636427007 has 2 divisors, whose sum is σ = 636427008. Its totient is φ = 636427006.

The previous prime is 636426971. The next prime is 636427019. The reversal of 636427007 is 700724636.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 636427007 - 2²⁰ = 635378431 is a prime.

It is a super-3 number, since 3×636427007³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636427307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318213503 + 318213504.

It is an arithmetic number, because the mean of its divisors is an integer number (318213504).

Almost surely, 2^636427007 is an apocalyptic number.

636427007 is a deficient number, since it is larger than the sum of its proper divisors (1).

636427007 is an equidigital number, since it uses as much as digits as its factorization.

636427007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 636427007 is about 25227.5049697746. The cubic root of 636427007 is about 860.1671781540.

The spelling of 636427007 in words is "six hundred thirty-six million, four hundred twenty-seven thousand, seven".