8538779 has 2 divisors, whose sum is σ = 8538780. Its totient is φ = 8538778.

The previous prime is 8538767. The next prime is 8538781. The reversal of 8538779 is 9778358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8538779 - 2¹⁶ = 8473243 is a prime.

Together with 8538781, it forms a pair of twin primes.

It is a Chen prime.

It is a pancake number, because a pancake can be divided into 8538779 parts by 4132 straight cuts.

It is not a weakly prime, because it can be changed into another prime (8538679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4269389 + 4269390.

It is an arithmetic number, because the mean of its divisors is an integer number (4269390).

Almost surely, 2^8538779 is an apocalyptic number.

8538779 is a deficient number, since it is larger than the sum of its proper divisors (1).

8538779 is an equidigital number, since it uses as much as digits as its factorization.

8538779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 47.

The square root of 8538779 is about 2922.1189229735. The cubic root of 8538779 is about 204.3926421627.

The spelling of 8538779 in words is "eight million, five hundred thirty-eight thousand, seven hundred seventy-nine".