679477761 has 8 divisors (see below), whose sum is σ = 1006633760. Its totient is φ = 452985156.

The previous prime is 679477759. The next prime is 679477823. The reversal of 679477761 is 167774976.

It is not a de Polignac number, because 679477761 - 2¹ = 679477759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679477698 and 679477707.

It is not an unprimeable number, because it can be changed into a prime (679477751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12582895 + ... + 12582948.

It is an arithmetic number, because the mean of its divisors is an integer number (125829220).

Almost surely, 2^679477761 is an apocalyptic number.

It is an amenable number.

679477761 is a deficient number, since it is larger than the sum of its proper divisors (327155999).

679477761 is a wasteful number, since it uses less digits than its factorization.

679477761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25165852 (or 25165846 counting only the distinct ones).

The product of its digits is 3111696, while the sum is 54.

The square root of 679477761 is about 26066.7942217680. The cubic root of 679477761 is about 879.1407595290.

The spelling of 679477761 in words is "six hundred seventy-nine million, four hundred seventy-seven thousand, seven hundred sixty-one".