7638998327 has 2 divisors, whose sum is σ = 7638998328. Its totient is φ = 7638998326.

The previous prime is 7638998287. The next prime is 7638998329. The reversal of 7638998327 is 7238998367.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7638998327 is a prime.

Together with 7638998329, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7638998327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7638998329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819499163 + 3819499164.

It is an arithmetic number, because the mean of its divisors is an integer number (3819499164).

Almost surely, 2^7638998327 is an apocalyptic number.

7638998327 is a deficient number, since it is larger than the sum of its proper divisors (1).

7638998327 is an equidigital number, since it uses as much as digits as its factorization.

7638998327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27433728, while the sum is 62.

The square root of 7638998327 is about 87401.3634161390. The cubic root of 7638998327 is about 1969.4523224386.

The spelling of 7638998327 in words is "seven billion, six hundred thirty-eight million, nine hundred ninety-eight thousand, three hundred twenty-seven".