679640382 has 48 divisors (see below), whose sum is σ = 1616941872. Its totient is φ = 213217920.

The previous prime is 679640341. The next prime is 679640387. The reversal of 679640382 is 283046976.

679640382 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×679640382² = 923822097690211848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679640387) 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, 32869 + ... + 49392.

It is an arithmetic number, because the mean of its divisors is an integer number (33686289).

Almost surely, 2^679640382 is an apocalyptic number.

679640382 is an abundant number, since it is smaller than the sum of its proper divisors (937301490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679640382 is a wasteful number, since it uses less digits than its factorization.

679640382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82295 (or 82283 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 679640382 is about 26069.9133485326. The cubic root of 679640382 is about 879.2108895385.

The spelling of 679640382 in words is "six hundred seventy-nine million, six hundred forty thousand, three hundred eighty-two".