679232079 has 18 divisors (see below), whose sum is σ = 995897448. Its totient is φ = 446010600.

The previous prime is 679232063. The next prime is 679232087. The reversal of 679232079 is 970232976.

It is a happy number.

It is not a de Polignac number, because 679232079 - 2⁴ = 679232063 is a prime.

It is a super-2 number, since 2×679232079² = 922712434285324482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679232009) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 658294 + ... + 659324.

It is an arithmetic number, because the mean of its divisors is an integer number (55327636).

Almost surely, 2^679232079 is an apocalyptic number.

679232079 is a deficient number, since it is larger than the sum of its proper divisors (316665369).

679232079 is an equidigital number, since it uses as much as digits as its factorization.

679232079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2139 (or 1105 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 679232079 is about 26062.0812484345. The cubic root of 679232079 is about 879.0347883897.

The spelling of 679232079 in words is "six hundred seventy-nine million, two hundred thirty-two thousand, seventy-nine".