7963849 has 2 divisors, whose sum is σ = 7963850. Its totient is φ = 7963848.

The previous prime is 7963847. The next prime is 7963859. The reversal of 7963849 is 9483697.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7952400 + 11449 = 2820^2 + 107^2 .

It is an emirp because it is prime and its reverse (9483697) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7963849 - 2¹ = 7963847 is a prime.

Together with 7963847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 7963799 and 7963808.

It is not a weakly prime, because it can be changed into another prime (7963847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3981924 + 3981925.

It is an arithmetic number, because the mean of its divisors is an integer number (3981925).

Almost surely, 2^7963849 is an apocalyptic number.

It is an amenable number.

7963849 is a deficient number, since it is larger than the sum of its proper divisors (1).

7963849 is an equidigital number, since it uses as much as digits as its factorization.

7963849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 7963849 is about 2822.0292344340. The cubic root of 7963849 is about 199.6982867411.

The spelling of 7963849 in words is "seven million, nine hundred sixty-three thousand, eight hundred forty-nine".