679479777 has 12 divisors (see below), whose sum is σ = 1024143744. Its totient is φ = 433291320.

The previous prime is 679479761. The next prime is 679479797. The reversal of 679479777 is 777974976.

It is not a de Polignac number, because 679479777 - 2⁴ = 679479761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (679479797) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1641049 + ... + 1641462.

It is an arithmetic number, because the mean of its divisors is an integer number (85345312).

Almost surely, 2^679479777 is an apocalyptic number.

It is an amenable number.

679479777 is a deficient number, since it is larger than the sum of its proper divisors (344663967).

679479777 is a wasteful number, since it uses less digits than its factorization.

679479777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282540 (or 3282537 counting only the distinct ones).

The product of its digits is 32672808, while the sum is 63.

The square root of 679479777 is about 26066.8328916269. The cubic root of 679479777 is about 879.1416289938.

The spelling of 679479777 in words is "six hundred seventy-nine million, four hundred seventy-nine thousand, seven hundred seventy-seven".