685536930 has 96 divisors (see below), whose sum is σ = 1952233920. Its totient is φ = 165870720.

The previous prime is 685536911. The next prime is 685536937. The reversal of 685536930 is 39635586.

685536930 is a `hidden beast` number, since 6 + 8 + 553 + 6 + 93 + 0 = 666.

685536930 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (685536937) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64065 + ... + 73995.

It is an arithmetic number, because the mean of its divisors is an integer number (20335770).

Almost surely, 2^685536930 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685536930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976116960).

685536930 is an abundant number, since it is smaller than the sum of its proper divisors (1266696990).

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

685536930 is a wasteful number, since it uses less digits than its factorization.

685536930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10016 (or 10013 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 685536930 is about 26182.7601677134. The cubic root of 685536930 is about 881.7462441211.

The spelling of 685536930 in words is "six hundred eighty-five million, five hundred thirty-six thousand, nine hundred thirty".