7638347 has 2 divisors, whose sum is σ = 7638348. Its totient is φ = 7638346.

The previous prime is 7638331. The next prime is 7638373. The reversal of 7638347 is 7438367.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7638347 - 2⁴ = 7638331 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 7638347.

It is not a weakly prime, because it can be changed into another prime (7638947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3819173 + 3819174.

It is an arithmetic number, because the mean of its divisors is an integer number (3819174).

Almost surely, 2^7638347 is an apocalyptic number.

7638347 is a deficient number, since it is larger than the sum of its proper divisors (1).

7638347 is an equidigital number, since it uses as much as digits as its factorization.

7638347 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 38.

The square root of 7638347 is about 2763.7559588357. The cubic root of 7638347 is about 196.9396346778.

The spelling of 7638347 in words is "seven million, six hundred thirty-eight thousand, three hundred forty-seven".