685246500 has 192 divisors, whose sum is σ = 2237114880. Its totient is φ = 181094400.

The previous prime is 685246483. The next prime is 685246501. The reversal of 685246500 is 5642586.

685246500 is a `hidden beast` number, since 68 + 52 + 46 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (685246501) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2605369 + ... + 2605631.

It is an arithmetic number, because the mean of its divisors is an integer number (11651640).

Almost surely, 2^685246500 is an apocalyptic number.

685246500 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 685246500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1118557440).

685246500 is an abundant number, since it is smaller than the sum of its proper divisors (1551868380).

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

685246500 is a wasteful number, since it uses less digits than its factorization.

685246500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484 (or 466 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 685246500 is about 26177.2133734666. The cubic root of 685246500 is about 881.6217082900.

The spelling of 685246500 in words is "six hundred eighty-five million, two hundred forty-six thousand, five hundred".