7538849 has 2 divisors, whose sum is σ = 7538850. Its totient is φ = 7538848.

The previous prime is 7538827. The next prime is 7538857. The reversal of 7538849 is 9488357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3775249 + 3763600 = 1943^2 + 1940^2 .

It is an emirp because it is prime and its reverse (9488357) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7538849 - 2¹⁶ = 7473313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7538449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3769424 + 3769425.

It is an arithmetic number, because the mean of its divisors is an integer number (3769425).

Almost surely, 2^7538849 is an apocalyptic number.

It is an amenable number.

7538849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7538849 is an equidigital number, since it uses as much as digits as its factorization.

7538849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 7538849 is about 2745.6964508117. The cubic root of 7538849 is about 196.0807750504.

The spelling of 7538849 in words is "seven million, five hundred thirty-eight thousand, eight hundred forty-nine".