679477698 has 24 divisors (see below), whose sum is σ = 1476386028. Its totient is φ = 225848832.

The previous prime is 679477691. The next prime is 679477727. The reversal of 679477698 is 896774976.

679477698 is a `hidden beast` number, since 6 + 79 + 477 + 6 + 98 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 673558209 + 5919489 = 25953^2 + 2433^2 .

It is not an unprimeable number, because it can be changed into a prime (679477691) 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 11 ways as a sum of consecutive naturals, for example, 47115 + ... + 59822.

Almost surely, 2^679477698 is an apocalyptic number.

679477698 is an abundant number, since it is smaller than the sum of its proper divisors (796908330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679477698 is a wasteful number, since it uses less digits than its factorization.

679477698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107298 (or 107295 counting only the distinct ones).

The product of its digits is 32006016, while the sum is 63.

The square root of 679477698 is about 26066.7930133340. The cubic root of 679477698 is about 879.1407323582.

The spelling of 679477698 in words is "six hundred seventy-nine million, four hundred seventy-seven thousand, six hundred ninety-eight".