7738849 has 2 divisors, whose sum is σ = 7738850. Its totient is φ = 7738848.

The previous prime is 7738823. The next prime is 7738867. The reversal of 7738849 is 9488377.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5688225 + 2050624 = 2385^2 + 1432^2 .

It is an emirp because it is prime and its reverse (9488377) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7738849 - 2⁹ = 7738337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 7738799 and 7738808.

It is not a weakly prime, because it can be changed into another prime (7738889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3869424 + 3869425.

It is an arithmetic number, because the mean of its divisors is an integer number (3869425).

Almost surely, 2^7738849 is an apocalyptic number.

It is an amenable number.

7738849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7738849 is an equidigital number, since it uses as much as digits as its factorization.

7738849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 7738849 is about 2781.8786817545. The cubic root of 7738849 is about 197.7996221319.

The spelling of 7738849 in words is "seven million, seven hundred thirty-eight thousand, eight hundred forty-nine".