8454779 has 4 divisors (see below), whose sum is σ = 8463120. Its totient is φ = 8446440.

The previous prime is 8454767. The next prime is 8454793. The reversal of 8454779 is 9774548.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8454779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8454739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2399 + ... + 4760.

It is an arithmetic number, because the mean of its divisors is an integer number (2115780).

Almost surely, 2^8454779 is an apocalyptic number.

8454779 is a deficient number, since it is larger than the sum of its proper divisors (8341).

8454779 is a wasteful number, since it uses less digits than its factorization.

8454779 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8340.

The product of its digits is 282240, while the sum is 44.

The square root of 8454779 is about 2907.7102675473. The cubic root of 8454779 is about 203.7201966269.

The spelling of 8454779 in words is "eight million, four hundred fifty-four thousand, seven hundred seventy-nine".