679306236 has 96 divisors (see below), whose sum is σ = 1876180992. Its totient is φ = 187246080.

The previous prime is 679306211. The next prime is 679306261. The reversal of 679306236 is 632603976.

It is an interprime number because it is at equal distance from previous prime (679306211) and next prime (679306261).

It is a super-2 number, since 2×679306236² = 922913924536975392, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 393856 + ... + 395576.

It is an arithmetic number, because the mean of its divisors is an integer number (19543552).

Almost surely, 2^679306236 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 679306236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (938090496).

679306236 is an abundant number, since it is smaller than the sum of its proper divisors (1196874756).

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

679306236 is a wasteful number, since it uses less digits than its factorization.

679306236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1897 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 42.

The square root of 679306236 is about 26063.5039087226. The cubic root of 679306236 is about 879.0667775593.

The spelling of 679306236 in words is "six hundred seventy-nine million, three hundred six thousand, two hundred thirty-six".