7638325 has 6 divisors (see below), whose sum is σ = 9471554. Its totient is φ = 6110640.

The previous prime is 7638313. The next prime is 7638331. The reversal of 7638325 is 5238367.

It can be written as a sum of positive squares in 3 ways, for example, as 26244 + 7612081 = 162^2 + 2759^2 .

It is not a de Polignac number, because 7638325 - 2⁹ = 7637813 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 152742 + ... + 152791.

Almost surely, 2^7638325 is an apocalyptic number.

It is an amenable number.

7638325 is a deficient number, since it is larger than the sum of its proper divisors (1833229).

7638325 is a wasteful number, since it uses less digits than its factorization.

7638325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305543 (or 305538 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 7638325 is about 2763.7519787419. The cubic root of 7638325 is about 196.9394456022.

The spelling of 7638325 in words is "seven million, six hundred thirty-eight thousand, three hundred twenty-five".