8148779 has 2 divisors, whose sum is σ = 8148780. Its totient is φ = 8148778.

The previous prime is 8148757. The next prime is 8148793. The reversal of 8148779 is 9778418.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8148779 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8148079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4074389 + 4074390.

It is an arithmetic number, because the mean of its divisors is an integer number (4074390).

Almost surely, 2^8148779 is an apocalyptic number.

8148779 is a deficient number, since it is larger than the sum of its proper divisors (1).

8148779 is an equidigital number, since it uses as much as digits as its factorization.

8148779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 44.

The square root of 8148779 is about 2854.6066278911. The cubic root of 8148779 is about 201.2322176076.

The spelling of 8148779 in words is "eight million, one hundred forty-eight thousand, seven hundred seventy-nine".