679075530 has 64 divisors (see below), whose sum is σ = 1868175360. Its totient is φ = 154753344.

The previous prime is 679075499. The next prime is 679075531. The reversal of 679075530 is 35570976.

It is a super-2 number, since 2×679075530² = 922287150889561800, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (679075531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68211 + ... + 77529.

It is an arithmetic number, because the mean of its divisors is an integer number (29190240).

Almost surely, 2^679075530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679075530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (934087680).

679075530 is an abundant number, since it is smaller than the sum of its proper divisors (1189099830).

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

679075530 is a wasteful number, since it uses less digits than its factorization.

679075530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9683.

The product of its (nonzero) digits is 198450, while the sum is 42.

The square root of 679075530 is about 26059.0776889743. The cubic root of 679075530 is about 878.9672500647.

It can be divided in two parts, 67907 and 5530, that added together give a palindrome (73437).

The spelling of 679075530 in words is "six hundred seventy-nine million, seventy-five thousand, five hundred thirty".