679514977 has 4 divisors (see below), whose sum is σ = 691032240. Its totient is φ = 667997716.

The previous prime is 679514963. The next prime is 679514987. The reversal of 679514977 is 779415976.

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 679514977 - 2¹¹ = 679512929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (679514987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5758543 + ... + 5758660.

It is an arithmetic number, because the mean of its divisors is an integer number (172758060).

Almost surely, 2^679514977 is an apocalyptic number.

It is an amenable number.

679514977 is a deficient number, since it is larger than the sum of its proper divisors (11517263).

679514977 is a wasteful number, since it uses less digits than its factorization.

679514977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11517262.

The product of its digits is 3333960, while the sum is 55.

The square root of 679514977 is about 26067.5080703929. The cubic root of 679514977 is about 879.1568098483.

Subtracting 679514977 from its reverse (779415976), we obtain a palindrome (99900999).

The spelling of 679514977 in words is "six hundred seventy-nine million, five hundred fourteen thousand, nine hundred seventy-seven".