8245779 has 4 divisors (see below), whose sum is σ = 10994376. Its totient is φ = 5497184.

The previous prime is 8245777. The next prime is 8245789. The reversal of 8245779 is 9775428.

8245779 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8245779 - 2¹ = 8245777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8245779.

It is not an unprimeable number, because it can be changed into a prime (8245777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1374294 + ... + 1374299.

It is an arithmetic number, because the mean of its divisors is an integer number (2748594).

Almost surely, 2^8245779 is an apocalyptic number.

8245779 is a deficient number, since it is larger than the sum of its proper divisors (2748597).

8245779 is a wasteful number, since it uses less digits than its factorization.

8245779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748596.

The product of its digits is 141120, while the sum is 42.

The square root of 8245779 is about 2871.5464474739. The cubic root of 8245779 is about 202.0275343965.

The spelling of 8245779 in words is "eight million, two hundred forty-five thousand, seven hundred seventy-nine".