679593887 has 24 divisors (see below), whose sum is σ = 856562256. Its totient is φ = 535465728.

The previous prime is 679593883. The next prime is 679593899. The reversal of 679593887 is 788395976.

679593887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 679593887 - 2² = 679593883 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679593883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26333 + ... + 45305.

It is an arithmetic number, because the mean of its divisors is an integer number (35690094).

Almost surely, 2^679593887 is an apocalyptic number.

679593887 is a deficient number, since it is larger than the sum of its proper divisors (176968369).

679593887 is a wasteful number, since it uses less digits than its factorization.

679593887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19047 (or 19040 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 62.

The square root of 679593887 is about 26069.0215965233. The cubic root of 679593887 is about 879.1908397966.

The spelling of 679593887 in words is "six hundred seventy-nine million, five hundred ninety-three thousand, eight hundred eighty-seven".