679893340 has 96 divisors (see below), whose sum is σ = 1792465920. Its totient is φ = 211216896.

The previous prime is 679893299. The next prime is 679893343. The reversal of 679893340 is 43398976.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679893343) 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 31 ways as a sum of consecutive naturals, for example, 55624 + ... + 66736.

It is an arithmetic number, because the mean of its divisors is an integer number (18671520).

Almost surely, 2^679893340 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679893340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896232960).

679893340 is an abundant number, since it is smaller than the sum of its proper divisors (1112572580).

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

679893340 is a wasteful number, since it uses less digits than its factorization.

679893340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11171 (or 11169 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 679893340 is about 26074.7644284661. The cubic root of 679893340 is about 879.3199549832.

The spelling of 679893340 in words is "six hundred seventy-nine million, eight hundred ninety-three thousand, three hundred forty".