68317500 has 60 divisors (see below), whose sum is σ = 199217480. Its totient is φ = 18216000.

The previous prime is 68317493. The next prime is 68317507. The reversal of 68317500 is 571386.

It is an interprime number because it is at equal distance from previous prime (68317493) and next prime (68317507).

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68317507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2946 + ... + 12054.

Almost surely, 2^68317500 is an apocalyptic number.

68317500 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 68317500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99608740).

68317500 is an abundant number, since it is smaller than the sum of its proper divisors (130899980).

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

68317500 is a wasteful number, since it uses less digits than its factorization.

68317500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9136 (or 9119 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 68317500 is about 8265.4400971757. The cubic root of 68317500 is about 408.7997816465.

Adding to 68317500 its reverse (571386), we get a palindrome (68888886).

The spelling of 68317500 in words is "sixty-eight million, three hundred seventeen thousand, five hundred".