8479778 has 16 divisors (see below), whose sum is σ = 13438656. Its totient is φ = 4004880.

The previous prime is 8479777. The next prime is 8479799. The reversal of 8479778 is 8779748.

It is not an unprimeable number, because it can be changed into a prime (8479777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2708 + ... + 4928.

It is an arithmetic number, because the mean of its divisors is an integer number (839916).

Almost surely, 2^8479778 is an apocalyptic number.

8479778 is a deficient number, since it is larger than the sum of its proper divisors (4958878).

8479778 is a wasteful number, since it uses less digits than its factorization.

8479778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329.

The product of its digits is 790272, while the sum is 50.

The square root of 8479778 is about 2912.0058379062. The cubic root of 8479778 is about 203.9207849560.

It can be divided in two parts, 84797 and 78, that multiplied together give a palindrome (6614166).

The spelling of 8479778 in words is "eight million, four hundred seventy-nine thousand, seven hundred seventy-eight".