679630577 has 4 divisors (see below), whose sum is σ = 701554176. Its totient is φ = 657706980.

The previous prime is 679630561. The next prime is 679630583. The reversal of 679630577 is 775036976.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 679630577 - 2⁴ = 679630561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679630507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10961753 + ... + 10961814.

It is an arithmetic number, because the mean of its divisors is an integer number (175388544).

Almost surely, 2^679630577 is an apocalyptic number.

It is an amenable number.

679630577 is a deficient number, since it is larger than the sum of its proper divisors (21923599).

679630577 is a wasteful number, since it uses less digits than its factorization.

679630577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21923598.

The product of its (nonzero) digits is 1666980, while the sum is 50.

The square root of 679630577 is about 26069.7252958293. The cubic root of 679630577 is about 879.2066614670.

It can be divided in two parts, 6796 and 30577, that added together give a palindrome (37373).

The spelling of 679630577 in words is "six hundred seventy-nine million, six hundred thirty thousand, five hundred seventy-seven".