679480978 has 16 divisors (see below), whose sum is σ = 1121721696. Its totient is φ = 306120640.

The previous prime is 679480961. The next prime is 679480999. The reversal of 679480978 is 879084976.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134176 + ... + 139147.

It is an arithmetic number, because the mean of its divisors is an integer number (70107606).

Almost surely, 2^679480978 is an apocalyptic number.

679480978 is a deficient number, since it is larger than the sum of its proper divisors (442240718).

679480978 is a wasteful number, since it uses less digits than its factorization.

679480978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273449.

The product of its (nonzero) digits is 6096384, while the sum is 58.

The square root of 679480978 is about 26066.8559285542. The cubic root of 679480978 is about 879.1421469628.

The spelling of 679480978 in words is "six hundred seventy-nine million, four hundred eighty thousand, nine hundred seventy-eight".