7638941 has 2 divisors, whose sum is σ = 7638942. Its totient is φ = 7638940.

The previous prime is 7638937. The next prime is 7638947. The reversal of 7638941 is 1498367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6528025 + 1110916 = 2555^2 + 1054^2 .

It is a cyclic number.

It is not a de Polignac number, because 7638941 - 2² = 7638937 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 7638895 and 7638904.

It is a congruent number.

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, 3819470 + 3819471.

It is an arithmetic number, because the mean of its divisors is an integer number (3819471).

Almost surely, 2^7638941 is an apocalyptic number.

It is an amenable number.

7638941 is a deficient number, since it is larger than the sum of its proper divisors (1).

7638941 is an equidigital number, since it uses as much as digits as its factorization.

7638941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 7638941 is about 2763.8634192015. The cubic root of 7638941 is about 196.9447395829.

The spelling of 7638941 in words is "seven million, six hundred thirty-eight thousand, nine hundred forty-one".