679285530 has 432 divisors, whose sum is σ = 2412577440. Its totient is φ = 131725440.

The previous prime is 679285483. The next prime is 679285543. The reversal of 679285530 is 35582976.

It is a happy number.

679285530 is a `hidden beast` number, since 6 + 7 + 92 + 8 + 553 + 0 = 666.

It is a super-2 number, since 2×679285530² = 922857662534761800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 10138557 + ... + 10138623.

It is an arithmetic number, because the mean of its divisors is an integer number (5584670).

Almost surely, 2^679285530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679285530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1206288720).

679285530 is an abundant number, since it is smaller than the sum of its proper divisors (1733291910).

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

679285530 is a wasteful number, since it uses less digits than its factorization.

679285530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 679285530 is about 26063.1066835863. The cubic root of 679285530 is about 879.0578458284.

The spelling of 679285530 in words is "six hundred seventy-nine million, two hundred eighty-five thousand, five hundred thirty".